Deployments

Deployments are a request for a specific ref(branch,sha,tag) to be deployed. GitHub then dispatches deployment events that external services can listen for and act on. This enables developers and organizations to build loosely-coupled tooling around deployments, without having to worry about implementation details of delivering different types of applications (e.g., web, native).

Deployment Statuses allow external services to mark deployments with a ‘success’, ‘failure’, ‘error’, or ‘pending’ state, which can then be consumed by any system listening for deployment_status events.

Deployment Statuses can also include an optional description and target_url, and we highly recommend providing them as they make deployment statuses much more useful. The target_url would be the full URL to the deployment output, and the description would be the high level summary of what happened with the deployment.

Deployments and Deployment Statuses both have associated repository events when they’re created. This allows webhooks and 3rd party integrations to respond to deployment requests as well as update the status of a deployment as progress is made.

Below is a simple sequence diagram for how these interactions would work.

+---------+             +--------+            +-----------+        +-------------+
| Tooling |             | GitHub |            | 3rd Party |        | Your Server |
+---------+             +--------+            +-----------+        +-------------+
     |                      |                       |                     |
     |  Create Deployment   |                       |                     |
     |--------------------->|                       |                     |
     |                      |                       |                     |
     |  Deployment Created  |                       |                     |
     |<---------------------|                       |                     |
     |                      |                       |                     |
     |                      |   Deployment Event    |                     |
     |                      |---------------------->|                     |
     |                      |                       |     SSH+Deploys     |
     |                      |                       |-------------------->|
     |                      |                       |                     |
     |                      |   Deployment Status   |                     |
     |                      |<----------------------|                     |
     |                      |                       |                     |
     |                      |                       |   Deploy Completed  |
     |                      |                       |<--------------------|
     |                      |                       |                     |
     |                      |   Deployment Status   |                     |
     |                      |<----------------------|                     |
     |                      |                       |                     |

Keep in mind that GitHub is never actually accessing your servers. It’s up to your 3rd party integration to interact with deployment events. This allows for github-services integrations as well as running your own systems depending on your use case. Multiple systems can listen for deployment events, and it’s up to each of those systems to decide whether or not they’re responsible for pushing the code out to your servers, building native code, etc.

Note that the repo_deployment OAuth scope grants targeted access to Deployments and Deployment Statuses without granting access to repository code, while the repo scope grants permission to code as well.

List Deployments

Simple filtering of deployments is available via query parameters:

GET /repos/:owner/:repo/deployments
Name Type Description
sha string The short or long sha that was recorded at creation time. Default: none
ref string The name of the ref. This can be a branch, tag, or sha. Default: none
task string The name of the task for the deployment. e.g. deploy or deploy:migrations. Default: none
environment string The name of the environment that was deployed to. e.g. staging or production. Default: none

Response

Status: 200 OK
Link: <https://api.github.com/resource?page=2>; rel="next",
      <https://api.github.com/resource?page=5>; rel="last"
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4999
[
  {
    "url": "https://api.github.com/repos/octocat/example/deployments/1",
    "id": 1,
    "sha": "a84d88e7554fc1fa21bcbc4efae3c782a70d2b9d",
    "ref": "master",
    "task": "deploy",
    "payload": {
      "task": "deploy:migrate"
    },
    "environment": "production",
    "description": "Deploy request from hubot",
    "creator": {
      "login": "octocat",
      "id": 1,
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    },
    "created_at": "2012-07-20T01:19:13Z",
    "updated_at": "2012-07-20T01:19:13Z",
    "statuses_url": "https://api.github.com/repos/octocat/example/deployments/1/statuses",
    "repository_url": "https://api.github.com/repos/octocat/example"
  }
]

Create a Deployment

Deployments offer a few configurable parameters with sane defaults.

The ref parameter can be any named branch, tag, or sha. At GitHub we often deploy branches and verify them before we merge a pull request.

The environment parameter allows deployments to be issued to different runtime environments. Teams often have multiple environments for verifying their applications, like ‘production’, ‘staging’, and ‘qa’. This allows for easy tracking of which environments had deployments requested. The default environment is ‘production’.

The auto_merge parameter is used to ensure that the requested ref is not behind the repository’s default branch. If the ref is behind the default branch for the repository, we will attempt to merge it for you. If the merge succeeds, the API will return a successful merge commit. If merge conflicts prevent the merge from succeeding, the API will return a failure response.

By default, commit statuses for every submitted context must be in a ‘success’ state. The required_contexts parameter allows you to specify a subset of contexts that must be “success”, or to specify contexts that have not yet been submitted. You are not required to use commit statuses to deploy. If you do not require any contexts or create any commit statuses, the deployment will always succeed.

The payload parameter is available for any extra information that a deployment system might need. It is a JSON text field that will be passed on when a deployment event is dispatched.

The task parameter is used by the deployment system to allow different execution paths. In the web world this might be ‘deploy:migrations’ to run schema changes on the system. In the compiled world this could be a flag to compile an application with debugging enabled.

Users with repo or repo_deployment scopes can create a deployment for a given ref:

POST /repos/:owner/:repo/deployments

Parameters

Name Type Description
ref string Required. The ref to deploy. This can be a branch, tag, or sha.
task string Optional parameter to specify a task to execute, e.g. deploy or deploy:migrations. Default: deploy
auto_merge boolean Optional parameter to merge the default branch into the requested ref if it is behind the default branch. Default: true
required_contexts Array Optional array of status contexts verified against commit status checks. If this parameter is omitted from the parameters then all unique contexts will be verified before a deployment is created. To bypass checking entirely pass an empty array. Defaults to all unique contexts.
payload string Optional JSON payload with extra information about the deployment. Default: ""
environment string Optional name for the target deployment environment (e.g., production, staging, qa). Default: "production"
description string Optional short description. Default: ""

Simple Example

A simple example putting the user and room into the payload to notify back to chat networks.

{
  "ref": "topic-branch",
  "payload": "{\"user\":\"atmos\",\"room_id\":123456}",
  "description": "Deploying my sweet branch"
}
Status: 201 Created
Location: https://api.github.com/repos/octocat/example/deployments/1
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4999
{
  "url": "https://api.github.com/repos/octocat/example/deployments/1",
  "id": 1,
  "sha": "a84d88e7554fc1fa21bcbc4efae3c782a70d2b9d",
  "ref": "master",
  "task": "deploy",
  "payload": {
    "task": "deploy:migrate"
  },
  "environment": "production",
  "description": "Deploy request from hubot",
  "creator": {
    "login": "octocat",
    "id": 1,
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "created_at": "2012-07-20T01:19:13Z",
  "updated_at": "2012-07-20T01:19:13Z",
  "statuses_url": "https://api.github.com/repos/octocat/example/deployments/1/statuses",
  "repository_url": "https://api.github.com/repos/octocat/example"
}

Advanced Example

A more advanced example specifying required commit statuses and bypassing auto-merging.

{
  "ref": "topic-branch",
  "auto_merge": false,
  "payload": "{\"user\":\"atmos\",\"room_id\":123456}",
  "description": "Deploying my sweet branch",
  "required_contexts": [
    "ci/janky",
    "security/brakeman"
  ]
}
Status: 201 Created
Location: https://api.github.com/repos/octocat/example/deployments/1
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4999
{
  "url": "https://api.github.com/repos/octocat/example/deployments/1",
  "id": 1,
  "sha": "a84d88e7554fc1fa21bcbc4efae3c782a70d2b9d",
  "ref": "master",
  "task": "deploy",
  "payload": {
    "task": "deploy:migrate"
  },
  "environment": "production",
  "description": "Deploy request from hubot",
  "creator": {
    "login": "octocat",
    "id": 1,
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "created_at": "2012-07-20T01:19:13Z",
  "updated_at": "2012-07-20T01:19:13Z",
  "statuses_url": "https://api.github.com/repos/octocat/example/deployments/1/statuses",
  "repository_url": "https://api.github.com/repos/octocat/example"
}

Update a Deployment

Once a deployment is created, it cannot be updated. Information relating to the success or failure of a deployment is handled through Deployment Statuses.

Deployment Statuses

List Deployment Statuses

Users with pull access can view deployment statuses for a deployment:

GET /repos/:owner/:repo/deployments/:id/statuses

Parameters

Name Type Description
id integer Required. The Deployment ID to list the statuses from.

Response

Status: 200 OK
Link: <https://api.github.com/resource?page=2>; rel="next",
      <https://api.github.com/resource?page=5>; rel="last"
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4999
[
  {
    "url": "https://api.github.com/repos/octocat/example/deployments/42/statuses/1",
    "id": 1,
    "state": "success",
    "creator": {
      "login": "octocat",
      "id": 1,
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    },
    "description": "Deployment finished successfully.",
    "target_url": "https://example.com/deployment/42/output",
    "created_at": "2012-07-20T01:19:13Z",
    "updated_at": "2012-07-20T01:19:13Z",
    "deployment_url": "https://api.github.com/repos/octocat/example/deployments/42",
    "repository_url": "https://api.github.com/repos/octocat/example"
  }
]

Create a Deployment Status

Users with push access can create deployment statuses for a given deployment:

POST /repos/:owner/:repo/deployments/:id/statuses

Parameters

Name Type Description
state string Required. The state of the status. Can be one of pending, success, error, or failure.
target_url string The target URL to associate with this status. This URL should contain output to keep the user updated while the task is running or serve as historical information for what happened in the deployment. Default: ""
description string A short description of the status. Default: ""

Example

{
  "state": "success",
  "target_url": "https://example.com/deployment/42/output",
  "description": "Deployment finished successfully."
}

Response

Status: 201 Created
Location: https://api.github.com/repos/octocat/example/deployments/42/statuses/1
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4999
{
  "url": "https://api.github.com/repos/octocat/example/deployments/42/statuses/1",
  "id": 1,
  "state": "success",
  "creator": {
    "login": "octocat",
    "id": 1,
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "description": "Deployment finished successfully.",
  "target_url": "https://example.com/deployment/42/output",
  "created_at": "2012-07-20T01:19:13Z",
  "updated_at": "2012-07-20T01:19:13Z",
  "deployment_url": "https://api.github.com/repos/octocat/example/deployments/42",
  "repository_url": "https://api.github.com/repos/octocat/example"
}