Initial commit

fetch-task-definition/action.yml

@@ -0,0 +1,16 @@
+name: 'Fetch task definition'
+description: 'Fetch task definition from ECS'
+inputs:
+  name:
+    description: 'Name of the task definition'
+    required: true
+  filename:
+    description: 'Name of the file to store the task definition'
+    required: false
+    default: 'task_definition.json'
+outputs:
+  filename:
+    description: 'Task definition filename'
+runs:
+  using: 'node12'
+  main: 'index.js'

fetch-task-definition/index.js

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+const core = require('@actions/core')
+const childProcess = require('child_process')
+
+async function run() {
+  try {
+    const taskDefinitionName = core.getInput('name', {required: true})
+    const filename = core.getInput('filename')
+
+    childProcess.execSync(
+      `aws ecs describe-task-definition --task-definition ${taskDefinitionName} | \\
+        jq '.taskDefinition|del(.compatibilities,.taskDefinitionArn,.requiresAttributes,.revision,.status)' \\
+        > ${filename}`
+    )
+
+    core.setOutput('filename', filename)
+  } catch (error) {
+    core.setFailed(error.message)
+  }
+}
+
+module.exports = run
+
+if (require.main === module) {
+  run()
+}