Ansible UI: AWX vs Semaphore UI

Denis GukovFounder & CTO at Semaphore UI
18 min read

AWX and Semaphore UI provide web interfaces and APIs for running automation across a team. This comparison covers AWX 24.6.1 and Semaphore UI 2.20.0, from supported tools and deployment to workflows, access control and ongoing maintenance.

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Overview

An Ansible playbook can start as a command one engineer runs from a laptop. As deployments, patching and certificate renewals become shared responsibilities, the team needs a common place to launch those jobs, supply inputs, manage credentials and review results. AWX and Semaphore UI provide that shared layer, with saved job configurations, schedules, permissions and execution history.

AWX organizes automation around Ansible. Teams connect playbooks stored in Git to inventories and credentials, save them as job templates and combine jobs into workflows. Organizations, teams and permissions control who can use each resource. AWX is an open-source project, while Red Hat Ansible Automation Platform (AAP) is a separate commercial offering with its own support and lifecycle.

Semaphore UI also centers on reusable tasks, with Ansible playbooks alongside dedicated templates for Terraform/OpenTofu, Terragrunt, Bash, PowerShell and Python. Projects bring together those templates, repositories, inventories, credentials and variables. A workflow can connect Infrastructure as Code (IaC) provisioning with host configuration and subsequent maintenance, keeping operations across these tools in one interface.

Semaphore UI task templates for Ansible, OpenTofu, Terragrunt, Bash and PowerShell in one project.
Semaphore UI. Different automation tools share one project’s template list, with configurable columns.
AWX template list showing Ansible job templates and reusable workflow templates within an organization.
AWX. Ansible job and workflow templates share a list with organization and launch controls.

Quick comparison

Saved jobs, credentials and schedules cover routine Ansible operations in both products. Their broader differences are in tool coverage, deployment and resource management. Here are the main characteristics of each.

Automation tools, installation, execution, workflows, inventories, access control, credentials, variables, license
Criteria Semaphore UI AWX
Automation tools Ansible, Terraform/OpenTofu, Terragrunt, Bash, PowerShell, Python AnsibleOther tools through playbooks
Installation Binary, packages, Docker, Kubernetes Kubernetes (Operator), Docker (dev/test)
Server platforms Linux, macOS, Windows, FreeBSD Linux containers (Kubernetes / Docker)
Task execution On the server or remote task machines On execution servers or Kubernetes job pods
Workflows Yes, visual workflows across automation tools Yes, visual Ansible workflows with reusable subworkflows
Scheduling Cron expressions, one-time runs One-time and recurring schedules
Inventory management Static and Git inventories, dynamic plugins, NetBox and other external sources Static and dynamic inventories, managed updates, constructed inventories
Access control RBAC, project roles, custom roles, template permissionsLDAP, OIDC, local TOTP RBAC, organization and team roles, per-resource permissionsLDAP, OIDC, SAML, MFA through an identity provider
Credentials Key Store, SSH keys, passwords, external vault integrations Credential objects, SSH keys, passwords, external vault integrations
Variables Reusable variable groups, extra variables, environment variables, surveys Inventory, host and group variables, extra variables, surveys
License MIT (Community)Separate commercial terms for paid editions Apache 2.0

For routine Ansible jobs, both provide launch, scheduling and execution history. The main differences are how they manage inventories and permissions, which tools they run directly and how they are deployed.

Semaphore UI features shown here span Community, Pro and Enterprise. Availability notes identify the minimum edition. Licensing and support explains the commercial options.

Feature comparison

A deployment may provision infrastructure, configure hosts and wait for approval before changing production. Where those steps run, how they exchange results and who controls them explain the most useful differences between the products.

Installation and setup

AWX’s recommended installation uses Kubernetes. Semaphore UI also supports standalone deployments, so the infrastructure needed to host the service is an early point of difference.

SupportedPartially supportedNot supported
Installation and setup: AWX and Semaphore UI
Criteria Semaphore UI AWX
Standalone binary Yes No
Native Linux packages YesDEB / RPM No
Docker deployment Yes PartialDevelopment and testing only
Kubernetes deployment YesHelm chart YesAWX Operator
Native Windows server YesAnsible requires WSL/container/Linux runner NoLinux containers
High availability YesEnterpriseShared database, Redis, load balancer YesReplicas, configure database failover separately

AWX’s recommended deployment combines the Kubernetes Operator, PostgreSQL and containerized job execution. Its Docker setup is intended for development and testing. For an existing Kubernetes team, the Operator follows a familiar operating model. Introducing a cluster solely for AWX adds infrastructure to maintain.

Semaphore UI also supports Kubernetes through Helm, alongside binary, native-package and Docker installations with SQLite, MySQL or PostgreSQL. A standalone installation can use an existing server without requiring a cluster, giving teams a smaller starting deployment and a choice of operating model.

The server’s operating system is separate from job execution. Semaphore UI has a native Windows server binary, while Ansible still needs Linux, macOS, a suitable container or WSL. A Linux runner can execute jobs for a web service hosted elsewhere. Both platforms can manage Windows targets through Ansible.

For high availability, AWX’s scaling options and Semaphore UI Enterprise’s HA deployment require database failover and recovery planning. Disconnected installations additionally need a delivery path for packages, execution images, updates and any paid-license activation.

Automation tools

A deployment may provision with Terraform/OpenTofu, configure with Ansible and finish with Python. AWX invokes the other tools through playbooks, while Semaphore UI provides direct task templates.

SupportedPartially supportedNot supported
Automation tools: AWX and Semaphore UI
Criteria Semaphore UI AWX
Ansible playbooks Yes Yes
Terraform/OpenTofu YesNative task template PartialThrough Ansible playbooks
Terragrunt YesNative task template PartialThrough Ansible playbooks
Bash YesNative task template PartialThrough Ansible playbooks
PowerShell YesNative task template PartialThrough Ansible playbooks
Python YesNative task template PartialThrough Ansible playbooks

AWX keeps Ansible at the center of execution. Playbooks can invoke Terraform/OpenTofu, Terragrunt, Bash, PowerShell or Python through modules or commands when the execution environment contains the dependencies. This suits teams that already describe their provisioning process in Ansible.

Semaphore UI gives those tools their own templates. Teams can launch existing automation directly and combine it in workflows without maintaining extra playbooks just to invoke another tool. An OpenTofu task can provision infrastructure, an Ansible task configure the hosts and a Python task complete a related operation, all in one interface.

Semaphore UI Pro provides a built-in HTTP backend for Terraform/OpenTofu state, alongside workspaces and run options. Teams can keep shared state in Semaphore UI instead of operating a separate backend. With AWX, the invoked Terraform process uses the backend configured by the team. AWX’s Terraform State inventory source reads state to discover hosts; it does not store state.

Terraform execution in Semaphore UI 2.20 has two important limits. A normal run previews a plan before applying, but does not automatically save that plan and apply the same file. If approval must cover the exact proposed change, configure the process to save the plan and pass it to apply. Default Terraform commands also disable state locking unless overridden, even when the backend supports locking. Review both settings when configuring production runs.

Templates and scheduling

AWX calls a saved Ansible configuration a Job Template. Semaphore UI calls it a Task Template. Each launch creates a separate job in AWX or task in Semaphore UI, with its own status, logs and result. The template holds the reusable settings, while surveys and schedules control the inputs and timing of a run.

SupportedPartially supportedNot supported
Templates and scheduling: AWX and Semaphore UI
Criteria Semaphore UI AWX
Saved task configuration Yes Yes
Surveys (run inputs) Yes Yes
Reusable variable sets YesVariable Groups shared across templates PartialInventory variables or files in Git
Repository branch at launch Yes Yes
Scheduled runs YesCron expressions and one-time runs YesOne-time and recurring schedules

In AWX, a Job Template selects a project, playbook, inventory and credentials, with an execution environment for the runtime dependencies. Semaphore UI’s Ansible Task Template selects a repository, playbook and inventory, with reusable Variable Groups and Ansible options in the same form. Engineers prepare this configuration once, then colleagues can launch the operation without rebuilding it each time.

Semaphore UI Ansible Task Template editor showing repository, playbook, inventory, Variable Groups and launch prompts.
Semaphore UI. An Ansible Task Template with shared variables and launch options.
AWX Job Template editor showing project, inventory, playbook, credentials and execution environment.
AWX. An Ansible Job Template with resource selection and launch prompts.

Surveys let colleagues supply launch inputs without editing a playbook. AWX supports validation such as text-length bounds. Semaphore UI’s Survey Variables include typed inputs, multiline text, secrets and single or multiple choices. Reusable Variable Groups hold shared configuration separately from launch values. AWX can share configuration through inventory, host and group variables or variable files in Git, rather than a separate Variable Groups object selected across templates.

Both can run a different repository branch when configured to allow it. AWX can prompt for inventory, credentials and other job settings. Semaphore UI supports configured Ansible inventory and command-line overrides. These options give engineers flexibility while allowing approved procedures to expose a narrower launch form.

Schedules automate those launches. AWX uses a start date, time and recurrence settings. Semaphore UI supports cron expressions and one-time runs. For example, 0 2 * * * runs daily at 02:00 in the configured scheduler timezone, which defaults to UTC. Either approach can handle backups, host checks or stopping non-production machines outside working hours.

Semaphore UI schedule dialog with a daily cron expression, task template and next run time.
Semaphore UI. A cron schedule with task inputs and a preview of the next run.
AWX schedule form with a daily recurrence, timezone, end conditions and exceptions.
AWX. A schedule with timezone, recurrence, end conditions and exceptions.

Inventory

Both products can use static files and dynamic discovery. The main difference is whether discovered hosts become platform-managed records or are resolved by Ansible when a job runs.

SupportedPartially supportedNot supported
Inventory: AWX and Semaphore UI
Criteria Semaphore UI AWX
Static inventories YesINI/YAML editor and files YesHost/group records and imported files
Git-based inventories YesSame or separate inventory repository YesSCM project sources
Dynamic inventories YesAnsible plugins and executable scripts YesPlugins, scripts and managed sources
Inventory refresh PartialDiscovery during execution YesScheduled updates and update-on-launch
Computed inventory groups YesAnsible constructed plugin YesManaged constructed inventories
Managed fact cache NoConfigure Ansible caching separately YesHost facts stored by AWX
Editing hosts and groups PartialEdit INI/YAML definitions YesIndividual host and group controls

AWX maintains host and group records and refreshes them through inventory-update jobs, using static files, Ansible inventory plugins or executable scripts. Semaphore UI lets teams edit INI/YAML inventories or load them from Git, including a separate repository. Plugins and scripts discover hosts during execution. The main distinction is whether the platform manages an inventory lifecycle or reuses the team’s Ansible configuration.

Semaphore UI Ansible inventory editor with two staging web hosts defined in static YAML.
Semaphore UI. A static YAML inventory with host groups and connection variables.
AWX inventory showing individual staging hosts, their web group and per-host enable switches.
AWX. Individual host records with group membership and per-host controls.

For example, the netbox.netbox.nb_inventory plugin discovers devices and virtual machines, filters targets and builds groups from NetBox data. NetBox remains the source of truth. AWX adds update controls and stored records, while Semaphore UI passes the configuration to Ansible. Both use the Ansible plugin rather than a separate native NetBox connector. Other sources include AWS, Azure and Google Cloud, and Semaphore UI documents a Git-hosted Python script for Consul.

AWX’s constructed inventories combine saved input inventories and manage the resulting hosts. Semaphore UI can use Ansible’s constructed plugin to build groups and variables from earlier sources. Ansible cache plugins can retain facts, but Semaphore UI does not provide AWX’s managed fact cache. Cache storage, expiry and sharing across runners remain part of the Ansible setup.

Semaphore UI plans to add ARA-style Ansible reporting in version 2.21.0. This will complement its inventory capabilities with a view of individual hosts and their automation history, helping operators see which tasks ran on each server, when they ran and where failures occurred.

Choose AWX’s inventory model when operators need to browse, refresh and manage host records in the platform. Semaphore UI fits a setup where Git defines the inventory or Ansible discovers hosts from systems such as NetBox and cloud APIs at execution time.

Secrets

Saved jobs need credentials without requiring operators to paste passwords or cloud tokens at each launch. Storage and lookup options determine how those credentials reach the job.

SupportedPartially supportedNot supported
Secrets: AWX and Semaphore UI
Criteria Semaphore UI AWX
Credential storage Yes Yes
HashiCorp Vault YesPro Yes
OpenBao YesPro NoNo built-in integration, Vault compatibility must be tested
AWS Secrets Manager YesEnterprise Yes
Azure Key Vault YesEnterprise Yes
Devolutions Server YesEnterprise NoNo built-in integration, custom connection possible

AWX credential objects and Semaphore UI’s Key Store provide credentials to saved jobs without requiring an operator to paste them at each launch. Both integrate with HashiCorp Vault, AWS Secrets Manager and Azure Key Vault, so teams can continue using those existing services.

Semaphore UI Vault storage form showing server URL, mount, namespace and token source options.
Semaphore UI. Vault connection settings, a mount and a token source.
AWX HashiCorp Vault Secret Lookup credential form showing connection and authentication fields.
AWX. Vault lookup connection and authentication fields. Further settings continue below the viewport.

Other integrations distinguish the products. AWX offers CyberArk Central Credential Provider, CyberArk Conjur and custom credential types. Semaphore UI provides dedicated OpenBao and Devolutions Server integrations. AWX’s Vault lookup may work with a compatible service, but OpenBao compatibility needs verification for the required operation.

Compare the integration for the vault your team already uses, including its authentication method and the secret types your jobs need. Services without a built-in integration may require custom retrieval code.

Execution

A job needs execution capacity that can reach its targets. Remote workers and container images address network placement and runtime dependencies separately.

SupportedPartially supportedNot supported
Execution: AWX and Semaphore UI
Criteria Semaphore UI AWX
Remote execution Yes Yes
Dedicated execution capacity YesProProject runners YesInstance groups assigned to resources
Execution routing YesProRunner tags on templates or inventories YesInstance groups assigned to resources
Ansible roles and collections YesInstall from requirements.yml YesInstall during project sync
Containerized tasks YesProDocker executor YesAnsible execution environment images
Kubernetes job pods YesEnterprise Yes
Concurrency controls YesTemplate, project and instance limits YesConcurrent jobs and instance-group capacity

AWX sends work to execution nodes, pooled into instance groups that can be assigned to organizations, inventories or templates. Semaphore UI runs jobs on its server or sends them to runners. In either model, execution machines can sit near the target systems while the web interface remains centralized.

A Semaphore UI runner inside a private network can patch hosts or renew certificates without direct connectivity from the web server. Project runners assign capacity to a project, while tags on templates or inventories route jobs to matching runners. This supports distributed sites and customer environments. Routing tags select machines, but do not enforce network or cloud-account isolation.

The job runtime determines what runs on those machines. AWX uses execution-environment images with Ansible and its dependencies, and container groups can create a Kubernetes pod per job. Semaphore UI offers per-task Docker execution in Pro and Kubernetes execution in Enterprise. These options are separate from hosting the web service in a container. Both products can install Ansible roles and collections from repository requirements, while other libraries and tools belong on the execution machine or in its image.

Concurrency controls limit simultaneous work. AWX combines concurrent-job settings with execution capacity and instance-group limits. Semaphore UI applies instance, project and template limits.

AWX can also split a large inventory into parallel jobs automatically. Semaphore UI can divide work through separate runs with Ansible host limits, with runner tags selecting execution machines. The team maintains those subsets and launches. For rolling updates, Ansible’s serial setting controls sequential batches. These cover targeted runs and staged rollouts, while AWX slicing provides automatic partitioning for parallel fleet-wide work.

Workflows

Provisioning can require a plan, approval, deployment and host configuration, with different paths after success or failure. Workflow composition determines how those steps connect.

SupportedPartially supportedNot supported
Workflows: AWX and Semaphore UI
Criteria Semaphore UI AWX
Visual workflow editor Yes Yes
Multiple starting nodes No Yes
Branch joins Yes Yes
Workflows as steps No Yes
Success/failure branches Yes Yes
Approval steps Yes Yes
Separate approver role NoAnnounced for 2.21 Yes
Passing workflow values Yes Yes

AWX workflows connect Ansible job templates, with other tools invoked through playbooks. Semaphore UI connects Ansible, Terraform/OpenTofu, Terragrunt, Bash, PowerShell and Python templates directly. Both support success/failure branches and approvals, so a provisioning process can pause before a production change.

Both use graphs without loops and support all/any predecessor conditions at joins. AWX allows several starting nodes. Semaphore UI starts from one node and offers task, approval, timed-delay and annotation nodes.

AWX can reuse an entire workflow inside another, keeping a shared multi-step procedure in one place. It prevents recursive execution and offers repository and inventory update steps. Semaphore UI reuses individual task templates across workflows, but cannot embed a workflow as a step. The difference matters when several deployments share a procedure rather than a single job.

Semaphore UI workflow editor with a plan step, approval, deployment and separate success and failure branches.
Semaphore UI. A deployment workflow with approval and separate success and failure paths.
Full AWX Workflow Visualizer showing a plan, approval, deployment, nested release verification and recovery branch.
AWX. Approval before deployment, a nested verification workflow and a failure-recovery branch.

AWX has a separately assignable approver role; administrators can also approve. In Semaphore UI 2.20, approval follows the permission to run project tasks. If a team needs to assign approval independently of execution, this is a material difference. A separate Semaphore UI approver role is announced for 2.21 and is not included in this comparison.

Both offer approvals through the UI and authenticated API, and AWX also provides an Ansible module. Interactive approval in Slack needs an integration that calls the API, rather than a notification alone.

Both pass values to later jobs, such as a newly provisioned host address. AWX exposes playbook-defined set_stats values as downstream extra variables, including on execution nodes. A playbook can capture another tool’s result this way. Semaphore UI collects Ansible set_stats, Terraform/OpenTofu/Terragrunt outputs and JSON from Bash, PowerShell or Python, then maps values to destination survey variables by matching names or explicit mappings.

In Semaphore UI 2.20, output collection works on the server and remote runners using the local executor. Docker and Kubernetes executors do not yet produce outputs. Values are collected after successful tasks, so failure branches cannot rely on outputs from a failed task. They are visible to task viewers and must not contain secrets.

Passing values does not transfer files in either product. If separate steps exchange a saved Terraform plan or another artifact, provide storage that both can access; reusing a runner does not guarantee that the working directory persists between tasks.

Access control

Support staff may need to restart an approved service without a general-purpose server login. Delegation must constrain both the operation and its targets.

SupportedPartially supportedNot supported
Access control: AWX and Semaphore UI
Criteria Semaphore UI AWX
Role-based access control YesProject roles, custom roles in Enterprise YesOrganization, team and resource roles
Independent inventory and credential permissions NoResource access follows project roles Yes
Template-level execution permissions YesEnterprise Yes
LDAP and OIDC YesPro Yes
SAML single sign-on NoOIDC available Yes
Two-factor authentication YesProLocal TOTP YesThrough an external identity provider

AWX grants permissions independently to inventories, credentials and job templates. Semaphore UI organizes access around projects, with Enterprise custom roles and template-level execution permissions for finer delegation. A preconfigured template can expose an approved operation using its chosen inventory, credentials and run settings.

For example, Semaphore UI Enterprise can give support staff access to a service-restart template for designated production servers. A Guest base role plus a custom role with no project-wide permissions can grant execution on that template. Keep inventory, host-limit, variable and other launch overrides constrained, and check that additional roles do not broaden access. The template, permissions and automation together define the permitted operation; the survey only collects inputs.

This delegates specific operations without creating independent inventory or credential permissions within a project. AWX is the closer match when operators need to combine resources under separate access rules. Semaphore UI’s template permissions fit a defined set of approved procedures.

Both support LDAP and OIDC for sign-in. AWX also supports SAML and relies on an external identity provider for MFA. Semaphore UI offers local TOTP two-factor authentication. An identity provider with OIDC can cover centralized Semaphore UI sign-in, while a SAML-only requirement needs another integration approach.

Logs and audit

Job output explains execution failures. Audit history records who launched an operation or changed its configuration, with different visibility and retention requirements.

SupportedPartially supportedNot supported
Logs and audit: AWX and Semaphore UI
Criteria Semaphore UI AWX
Task history and logs Yes Yes
Task-history retention YesKeep recent tasks per template YesScheduled age-based cleanup
Cross-project audit history YesAdministrator audit log, enable recording YesActivity stream, role-based visibility
SIEM forwarding YesProTLS Syslog and Splunk HEC YesExternal logging, including Splunk

Both products retain task history and output for troubleshooting. Audit visibility differs: AWX’s activity stream follows resource permissions and administrator or auditor roles. Semaphore UI’s cross-project audit view is available to administrators, with events stored in its database when audit recording is enabled.

For central investigations, AWX external logging forwards activity, job and server records, including to Splunk. Semaphore UI Pro adds audit filters, CSV or JSONL export and forwarding through TLS Syslog or Splunk HEC. Both can supply events to a logging platform or security information and event management (SIEM) system.

Local retention uses different controls. AWX provides scheduled age-based cleanup for execution history and the activity stream. Semaphore UI keeps a configured number of recent tasks per template. A central logging system can retain records beyond those local limits.

Integrations

Repository changes and service-portal requests can trigger automation. APIs, webhooks and notifications connect those events with jobs and their results.

SupportedPartially supportedNot supported
Integrations: AWX and Semaphore UI
Criteria Semaphore UI AWX
REST API Yes Yes
Job webhooks YesGeneric endpoints, matchers, value extraction YesGitHub and GitLab webhooks
Job notifications Yes Yes

AWX provides built-in GitHub and GitLab job webhooks for repository-triggered automation. Semaphore UI offers generic webhook endpoints with request matching and extraction of task inputs. These endpoints can receive events from different systems, while the REST APIs of both products support other callers.

For outgoing notifications, AWX provides email, Slack, Rocket.Chat, Mattermost, PagerDuty, AWS SNS, Grafana, IRC, Twilio and webhook notifications. Semaphore UI supports email (SMTP), Telegram, Slack, Microsoft Teams, Rocket.Chat, DingTalk and Gotify. These report job events to people or services, whereas incoming job webhooks start automation.

A service portal or ITSM system can use either REST API to launch a prepared job and retrieve its result. For example, an internal portal can submit a certificate-renewal request to a saved template and report completion to the requester. This is an API-based integration configured by the team, rather than a dedicated native connector.

AI-assisted automation

Both platforms give coding assistants such as Claude Code and Codex useful material to work with: public documentation, open-source code and documented APIs. An assistant can consult configuration examples, inspect how a setting is implemented and use API definitions to draft integration code. Given the relevant configuration and job output, it can also help investigate failures. This makes AI-assisted setup and troubleshooting possible without a dedicated AI feature built into the platform.

Community MCP connectors are available for both AWX and Semaphore UI. They connect assistants to platform operations such as finding templates, launching jobs and retrieving results, depending on the connector. This lets a team work with prepared automation through an assistant while keeping job definitions and execution in the platform.

Semaphore UI has announced official MCP support for Pro in version 2.21.0.

Licensing and support

Both AWX and Semaphore UI offer free, open-source software. The main difference is how teams can obtain commercial capabilities, vendor support and contractual commitments as automation becomes more important to their operations.

Open-source and commercial options

AWX is licensed under Apache 2.0 and supported by its community. It is also an upstream project for the automation controller component of Red Hat Ansible Automation Platform (AAP). Red Hat does not sell a support subscription for AWX itself. Its commercially supported offering is AAP, a separate enterprise platform combining automation controller with additional components, certified content and a defined product lifecycle.

Semaphore UI follows an open-core model. Community is free and MIT-licensed, while Pro and Enterprise add commercial capabilities and vendor support within the same product family. Pro is designed for smaller engineering teams bringing automation into daily operations. Enterprise addresses more demanding access, execution, availability and support requirements.

The commercial offerings therefore serve different purchasing needs. AAP is a broader enterprise-platform investment. Semaphore UI’s commercial plans are aimed at engineering teams and mid-sized organizations, with an Enterprise option for complex or business-critical environments. Teams can obtain advanced controls and vendor support while keeping their investment focused on the automation service they need.

Support and contractual commitments

AWX users can ask questions, report bugs and contribute fixes through community channels. Community assistance does not establish a vendor obligation to respond within a particular time or provide incident support. An AAP subscription provides Red Hat support for AAP; it does not add support coverage to an existing AWX installation.

Semaphore UI Community likewise provides best-effort assistance without a support SLA. Pro includes business-time vendor support, while Enterprise offers tailored SLA options and assistance with onboarding, configuration, upgrades and migration. Commercial customers therefore have a direct vendor relationship, with support obligations defined by the applicable plan and agreement.

Release and maintenance planning

AWX currently states that releases are paused during a large-scale refactoring. Semaphore UI continues to publish releases and maintains a security policy identifying supported versions. These differences matter when planning upgrades and ongoing maintenance. Review the release history, security policies and upgrade guidance for the version you intend to operate alongside any contractual support commitments.

How to choose

Both platforms let teams share automation, schedule jobs and review results. Choose based on how you manage host information, delegate operations, host the service and obtain support.

When to choose AWX

AWX is a strong fit when Ansible is central to your automation and its resource-management model matches your daily operations.

  • Managing inventories through the platform is a core requirement. Your operators rely on the platform to maintain host and group records, refresh inventories and retain host facts as part of their daily work.
  • Inventories and credentials need their own access rules. Your team must assign permissions to individual inventories and credentials independently of job templates, allowing operators to combine only the resources they are authorized to use.
  • Kubernetes fits your existing infrastructure. Your team already operates a cluster, so AWX’s recommended deployment model fits the systems and skills you maintain.
  • Ansible already orchestrates your procedures. Your playbooks cover the required operations, including calls to other tools, and Ansible execution environments provide their dependencies.
  • Community support meets your needs. Your team has the expertise and capacity to investigate incidents, assess security advisories and maintain the installation without a vendor response SLA.

When to choose Semaphore UI

Semaphore UI is a strong fit when you want a straightforward service for running and sharing automation across your existing tools and infrastructure.

  • Your inventories already live in Git or external systems. You want to reuse Ansible inventory definitions and plugins that discover hosts from NetBox, cloud APIs or other sources when jobs run.
  • Colleagues need access to prepared operations. Engineers define tasks such as deployments, service restarts or certificate renewals. Other team members launch those tasks with the required inputs, while inventories and credentials remain part of the prepared configuration.
  • You want to deploy without Kubernetes. Binary, native-package and Docker installations let you use an existing server, avoiding a cluster introduced solely for the automation service.
  • Your automation spans several tools. Dedicated templates run Ansible, Terraform/OpenTofu, Terragrunt, Bash, PowerShell and Python directly, with workflows connecting their operations.
  • You want a direct path to commercial support. Commercial licenses add vendor support and advanced capabilities within the same product family, so you can obtain support commitments while continuing to use Semaphore UI.

FAQ

Can Semaphore UI replace AWX?

Yes, when its inventory, permission and workflow model covers your requirements. Existing playbooks can often be reused, while job configuration and access controls need to be mapped and tested. Check any dependencies on AWX-specific features, especially nested workflows, independent inventory or credential permissions, and managed fact caching.

Can I reuse my existing Ansible playbooks?

Start with the same repository and playbooks. Configure the required inventory, credentials, variables, collections and runtime dependencies in Semaphore UI, then test representative runs. Reusing the code does not mean importing all AWX settings automatically.

What needs checking when migrating from AWX?

Start with one representative workflow. Reuse its playbooks where possible, then map inventories, credentials, variables, surveys, schedules and runtime dependencies. Verify permissions, approvals, nested workflows and value or file transfer separately. An import can reduce setup work, but it does not prove that the imported job behaves the same way. Test before enabling production schedules.

Which Semaphore UI features need a paid edition?

Community covers the core task interface and workflows. Features such as project runners, Docker execution and external vault integrations start with Pro. Custom roles, template permissions, Kubernetes task execution and high availability require Enterprise. Check the relevant feature and the capacity you need when estimating a plan.

Can I keep SAML single sign-on after migrating?

AWX supports SAML directly. Semaphore UI supports LDAP and OIDC, but has no native SAML integration. An identity provider that also offers OIDC may cover the sign-in requirement. Verify user and group mapping separately, because changing the authentication protocol does not recreate AWX permissions.

Does Semaphore UI require Kubernetes?

No. Binary, package and Docker installations are available. Kubernetes is an optional deployment choice. Automation tools and a suitable database are still part of the environment.

Can AWX run Terraform or use HashiCorp Vault?

Yes. Playbooks can execute Terraform commands or collection modules, and AWX supports HashiCorp Vault credential lookups. Semaphore UI offers a different configuration model through dedicated Terraform/OpenTofu templates and an optional Pro HTTP state backend.

Does either platform support remote execution?

Both can run tasks on remote servers. AWX uses execution nodes grouped for different teams and workloads. Semaphore UI uses runner agents. Their setup and access models differ.

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  8. Ansible community, “NetBox Ansible inventory plugin”. URL: https://docs.ansible.com/projects/ansible/latest/collections/netbox/netbox/nb_inventory_inventory.html (accessed: ).
  9. Ansible community, “AWS EC2 Ansible inventory plugin”. URL: https://docs.ansible.com/projects/ansible/latest/collections/amazon/aws/aws_ec2_inventory.html (accessed: ).
  10. Ansible community, “Azure Ansible inventory plugin”. URL: https://docs.ansible.com/projects/ansible/latest/collections/azure/azcollection/azure_rm_inventory.html (accessed: ).
  11. Ansible community, “Google Cloud Ansible inventory plugin”. URL: https://docs.ansible.com/projects/ansible/latest/collections/google/cloud/gcp_compute_inventory.html (accessed: ).
  12. Semaphore UI, “Semaphore cloning of inventory repositories”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/tasks/local_executor_inventory.go (accessed: ).
  13. Semaphore UI, “Semaphore local execution, workflow outputs, inventory paths, host limits and branch overrides”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/tasks/local_executor.go (accessed: ).
  14. Semaphore UI, “Semaphore survey field types”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/web/src/components/SurveyVars.vue (accessed: ).
  15. Semaphore UI, “Semaphore survey inputs and task launch form”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/web/src/components/TaskForm.vue (accessed: ).
  16. Semaphore UI, “What is Semaphore UI?”. URL: https://semaphoreui.com/docs/introduction/what-is-semaphore (accessed: ).
  17. AWX project, “AWX user guide”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/index.html (accessed: ).
  18. Semaphore UI, “Semaphore source and MIT license”. URL: https://github.com/semaphoreui/semaphore (accessed: ).
  19. AWX project, “AWX source and Apache 2.0 license”. URL: https://github.com/ansible/awx (accessed: ).
  20. Semaphore UI, “Semaphore setup and first run”. URL: https://semaphoreui.com/docs/getting-started (accessed: ).
  21. Semaphore UI, “Semaphore installation methods and dependencies”. URL: https://semaphoreui.com/docs/admin-guide/installation (accessed: ).
  22. AWX project, “AWX installation paths”. URL: https://github.com/ansible/awx/blob/24.6.1/INSTALL.md (accessed: ).
  23. AWX project, “AWX Operator installation”. URL: https://docs.ansible.com/projects/awx-operator/en/latest/installation/basic-install.html (accessed: ).
  24. Semaphore UI, “Semaphore high availability prerequisites”. URL: https://semaphoreui.com/docs/admin-guide/ha#prerequisites (accessed: ).
  25. AWX project, “AWX web and task replica scaling”. URL: https://docs.ansible.com/projects/awx-operator/en/latest/user-guide/advanced-configuration/scaling-the-web-and-task-pods-independently.html (accessed: ).
  26. Semaphore UI, “Semaphore automation applications”. URL: https://semaphoreui.com/docs/user-guide/apps (accessed: ).
  27. Semaphore UI, “Semaphore task templates”. URL: https://semaphoreui.com/docs/user-guide/task-templates (accessed: ).
  28. AWX project, “AWX job templates and surveys”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/job_templates.html (accessed: ).
  29. Semaphore UI, “Survey variables”. URL: https://semaphoreui.com/docs/user-guide/task-templates/survey-vars (accessed: ).
  30. Semaphore UI, “Terraform and OpenTofu in Semaphore”. URL: https://semaphoreui.com/docs/user-guide/apps/terraform (accessed: ).
  31. Ansible community, “Ansible Terraform module”. URL: https://docs.ansible.com/projects/ansible/latest/collections/community/general/terraform_module.html (accessed: ).
  32. Semaphore UI, “Semaphore Terraform HTTP backend”. URL: https://semaphoreui.com/docs/user-guide/apps/terraform/states (accessed: ).
  33. Semaphore UI, “Semaphore workflow nodes and approvals”. URL: https://semaphoreui.com/docs/user-guide/workflows (accessed: ).
  34. Semaphore UI, “Semaphore inventory types and stored resources”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/db/Inventory.go (accessed: ).
  35. AWX project, “AWX job slicing”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/job_slices.html (accessed: ).
  36. Semaphore UI, “Semaphore workflow approval API routes”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/api/router.go (accessed: ).
  37. AWX project, “AWX resource, workflow approval and activity-stream access control”. URL: https://github.com/ansible/awx/blob/24.6.1/awx/main/access.py (accessed: ).
  38. AWX project, “AWX workflow approval Ansible module”. URL: https://github.com/ansible/awx/blob/24.6.1/awx_collection/plugins/modules/workflow_approval.py (accessed: ).
  39. AWX project, “AWX workflow branch convergence”. URL: https://github.com/ansible/awx/blob/24.6.1/awx/main/scheduler/dag_workflow.py#L51-L112 (accessed: ).
  40. AWX project, “AWX Terraform State inventory source”. URL: https://github.com/ansible/awx/blob/24.6.1/docs/docsite/rst/userguide/inventories.rst#L1092-L1121 (accessed: ).
  41. AWX project, “AWX instance-group capacity limits”. URL: https://github.com/ansible/awx/blob/24.6.1/docs/docsite/rst/administration/containers_instance_groups.rst#L247-L263 (accessed: ).
  42. AWX project, “AWX custom credential types”. URL: https://github.com/ansible/awx/blob/24.6.1/docs/credentials/custom_credential_types.md (accessed: ).
  43. AWX project, “AWX workflows”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/workflow_templates.html (accessed: ).
  44. AWX project, “AWX workflow branching and output variables”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/workflows.html (accessed: ).
  45. AWX project, “AWX collection of Ansible workflow variables”. URL: https://github.com/ansible/awx/blob/24.6.1/awx/main/tasks/callback.py#L156-L160 (accessed: ).
  46. AWX project, “AWX processing of execution-node events”. URL: https://github.com/ansible/awx/blob/24.6.1/awx/main/tasks/receptor.py#L544-L553 (accessed: ).
  47. AWX project, “AWX inheritance of variables between workflow jobs”. URL: https://github.com/ansible/awx/blob/24.6.1/awx/main/models/workflow.py#L324-L354 (accessed: ).
  48. Semaphore UI, “Semaphore global runners”. URL: https://semaphoreui.com/docs/admin-guide/runners/ (accessed: ).
  49. Semaphore UI, “Semaphore project runners”. URL: https://semaphoreui.com/docs/user-guide/projects/runners (accessed: ).
  50. AWX project, “AWX execution and hop nodes”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/administration/instances.html (accessed: ).
  51. AWX project, “AWX execution environments”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/execution_environments.html (accessed: ).
  52. AWX project, “AWX Kubernetes container groups”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/administration/containers_instance_groups.html (accessed: ).
  53. Semaphore UI, “Semaphore inventories”. URL: https://semaphoreui.com/docs/user-guide/inventory (accessed: ).
  54. AWX project, “AWX inventories”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/inventories.html (accessed: ).
  55. Semaphore UI, “Semaphore project access”. URL: https://semaphoreui.com/docs/user-guide/projects (accessed: ).
  56. Semaphore UI, “Semaphore team roles and template-level permissions”. URL: https://semaphoreui.com/docs/user-guide/team#extended-rbac (accessed: ).
  57. AWX project, “AWX role-based access controls”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/rbac.html (accessed: ).
  58. Semaphore UI, “Semaphore LDAP and OIDC authentication”. URL: https://semaphoreui.com/docs/admin-guide/authentication (accessed: ).
  59. AWX project, “AWX LDAP, OIDC and SAML authentication”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/administration/ent_auth.html (accessed: ).
  60. Semaphore UI, “Semaphore Key Store”. URL: https://semaphoreui.com/docs/user-guide/key-store (accessed: ).
  61. AWX project, “AWX credentials and secret lookups”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/credentials.html (accessed: ).
  62. AWX project, “AWX external secret management integrations”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/credential_plugins.html (accessed: ).
  63. Semaphore UI, “Semaphore OpenBao secret storage”. URL: https://semaphoreui.com/docs/user-guide/key-store/openbao (accessed: ).
  64. Semaphore UI, “Semaphore Devolutions Server secret storage”. URL: https://semaphoreui.com/docs/user-guide/key-store/devolutions-server (accessed: ).
  65. Semaphore UI, “Semaphore webhook integrations”. URL: https://semaphoreui.com/docs/user-guide/integrations (accessed: ).
  66. AWX project, “AWX webhooks”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/webhooks.html (accessed: ).
  67. Semaphore UI, “Semaphore REST API”. URL: https://semaphoreui.com/api-docs (accessed: ).
  68. Ansible community, “Ansible command execution”. URL: https://docs.ansible.com/projects/ansible/latest/collections/ansible/builtin/command_module.html (accessed: ).
  69. Ansible community, “Ansible PowerShell module”. URL: https://docs.ansible.com/projects/ansible/latest/collections/ansible/windows/win_powershell_module.html (accessed: ).
  70. Semaphore UI, “Semaphore notification channels”. URL: https://semaphoreui.com/docs/admin-guide/notifications (accessed: ).
  71. AWX project, “AWX notifications”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/notifications.html (accessed: ).
  72. Semaphore UI, “Semaphore task history and output”. URL: https://semaphoreui.com/docs/user-guide/tasks (accessed: ).
  73. Semaphore UI, “Semaphore scheduled tasks”. URL: https://semaphoreui.com/docs/user-guide/schedules (accessed: ).
  74. AWX project, “AWX activity stream”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/main_menu.html (accessed: ).
  75. Semaphore UI, “Semaphore Community, Pro and Enterprise”. URL: https://semaphoreui.com/pricing (accessed: ).
  76. Red Hat, “Red Hat: AWX and Ansible Automation Platform”. URL: https://www.redhat.com/en/technologies/management/ansible/compare-awx-vs-ansible-automation-platform (accessed: ).
  77. Red Hat, “Red Hat automation controller, formerly Ansible Tower”. URL: https://www.redhat.com/en/technologies/management/ansible/automation-controller (accessed: ).
  78. Semaphore UI, “Semaphore stable releases”. URL: https://github.com/semaphoreui/semaphore/releases (accessed: ).
  79. AWX project, “AWX release history”. URL: https://github.com/ansible/awx/releases (accessed: ).
  80. Semaphore MCP contributors, “Semaphore MCP connector”. URL: https://github.com/cloin/semaphore-mcp (accessed: ).
  81. Semaphore MCP contributors, “Semaphore MCP task execution and output”. URL: https://github.com/cloin/semaphore-mcp/blob/72f5b7008f6d560c74e01da9884e6fddbbf68999/src/semaphore_mcp/tools/tasks.py (accessed: ).
  82. LY Corporation, “AWX MCP connector and compatibility”. URL: https://github.com/lycorp-jp/awx-mcp/tree/fa4d25ffa9e04967e98dc66b219a0481d61ea814 (accessed: ).
  83. LY Corporation, “AWX MCP job template execution”. URL: https://github.com/lycorp-jp/awx-mcp/blob/fa4d25ffa9e04967e98dc66b219a0481d61ea814/awx_mcp/tools/job_templates.py (accessed: ).
  84. LY Corporation, “AWX MCP job output”. URL: https://github.com/lycorp-jp/awx-mcp/blob/fa4d25ffa9e04967e98dc66b219a0481d61ea814/awx_mcp/tools/jobs.py (accessed: ).
  85. HashiCorp, “Terraform local state backend”. URL: https://developer.hashicorp.com/terraform/language/backend/local (accessed: ).
  86. HashiCorp, “Terraform state locking”. URL: https://developer.hashicorp.com/terraform/language/state/locking (accessed: ).
  87. Semaphore UI, “Semaphore variable groups”. URL: https://semaphoreui.com/docs/user-guide/environment (accessed: ).
  88. Semaphore UI, “Semaphore runner selection and capacity”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/tasks/RemoteJob.go (accessed: ).
  89. Semaphore UI, “Semaphore cron and one-time schedule execution”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/schedules/SchedulePool.go (accessed: ).
  90. AWX project, “AWX schedules”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/scheduling.html (accessed: ).
  91. Ansible community, “Ansible constructed inventory plugin”. URL: https://docs.ansible.com/projects/ansible/latest/collections/ansible/builtin/constructed_inventory.html (accessed: ).
  92. Ansible community, “Ansible cache plugins”. URL: https://docs.ansible.com/projects/ansible/latest/plugins/cache.html (accessed: ).
  93. Semaphore UI, “View and export the Semaphore audit log”. URL: https://semaphoreui.com/docs/admin-guide/audit-log/view (accessed: ).
  94. Semaphore UI, “Semaphore administrator audit-log access”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/api/audit_log.go (accessed: ).
  95. AWX project, “AWX logging and aggregation”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/administration/logging.html (accessed: ).
  96. Semaphore UI, “Semaphore audit log”. URL: https://semaphoreui.com/docs/admin-guide/audit-log (accessed: ).
  97. Semaphore UI, “Ansible role and collection installation”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/db_lib/AnsibleApp.go (accessed: ).
  98. Semaphore UI, “Task-history cleanup”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/db/sql/task.go (accessed: ).
  99. Semaphore UI, “Ansible inventory overrides”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/tasks/TaskRunner.go (accessed: ).
  100. AWX project, “Projects, Ansible Galaxy and collections”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/userguide/projects.html#ansible-galaxy-support (accessed: ).
  101. AWX project, “Management jobs”. URL: https://docs.ansible.com/projects/awx/en/24.6.1/administration/management_jobs.html (accessed: ).
  102. Semaphore UI, “Terraform plan and apply execution”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/db_lib/TerraformApp.go (accessed: ).
  103. Semaphore UI, “Repository working directories”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/db/Repository.go (accessed: ).
  104. HashiCorp, “Terraform plan command”. URL: https://developer.hashicorp.com/terraform/cli/commands/plan (accessed: ).
  105. HashiCorp, “Terraform apply command”. URL: https://developer.hashicorp.com/terraform/cli/commands/apply (accessed: ).
  106. Semaphore UI, “Security policy”. URL: https://github.com/semaphoreui/semaphore/security/policy (accessed: ).
  107. AWX project, “Security policy”. URL: https://github.com/ansible/awx/security/policy (accessed: ).
  108. AWX project, “Release status and project overview”. URL: https://github.com/ansible/awx/blob/devel/README.md (accessed: ).
  109. Semaphore UI, “Semaphore notification channel implementation”. URL: https://github.com/semaphoreui/semaphore/blob/58a596ed20b724af67c468588edcda12d1779549/services/tasks/alert.go (accessed: ).

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