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Allow re-use of existing environment #5

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Allow re-use of existing environment #5

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4 changes: 4 additions & 0 deletions action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,10 @@ inputs:
DEST_ENV_NAME:
description: "The name of the deployed PR environment. Usually a combination of pr-<PR_NUMBER>-<SHORT_COMMIT_HASH> passed inside of workflow"
required: true
FAIL_IF_EXISTS:
description: "Whether to fail the action if the destination environment already exists. Set to `false` to re-use existing environment"
default: "true"
required: false
ENV_VARS:
description: 'The environment variables to set on the PR environment. Should be a JSON object of key value pairs. e.g. {"DATABASE_URL": "test_url", "A": "abc", "D": "efg"}'
required: false
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56 changes: 38 additions & 18 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ const PROJECT_ID = core.getInput('PROJECT_ID');
const SRC_ENVIRONMENT_NAME = core.getInput('SRC_ENVIRONMENT_NAME');
const SRC_ENVIRONMENT_ID = core.getInput('SRC_ENVIRONMENT_ID');
const DEST_ENV_NAME = core.getInput('DEST_ENV_NAME');
const FAIL_IF_EXISTS = core.getInput('FAIL_IF_EXISTS');
const ENV_VARS = core.getInput('ENV_VARS');
const API_SERVICE_NAME = core.getInput('API_SERVICE_NAME');
const IGNORE_SERVICE_REDEPLOY = core.getInput('IGNORE_SERVICE_REDEPLOY');
Expand Down Expand Up @@ -83,6 +84,7 @@ async function getEnvironments() {
node {
id
name
createdAt
deployments {
edges {
node {
Expand All @@ -97,6 +99,7 @@ async function getEnvironments() {
id
domains {
serviceDomains {
id
domain
}
}
Expand All @@ -105,6 +108,16 @@ async function getEnvironments() {
}
}
}
deploymentTriggers {
edges {
node {
id
environmentId
branch
projectId
}
}
}
}
}
}
Expand Down Expand Up @@ -313,34 +326,41 @@ async function run() {
// Filter the response to only include the environment name we are looking to create
const filteredEdges = response.environments.edges.filter((edge) => edge.node.name === DEST_ENV_NAME);

let environemnt = undefined
// If there is a match this means the environment already exists
if (filteredEdges.length == 1) {
throw new Error('Environment already exists. Please delete the environment via API or Railway Dashboard and try again.')
}

let srcEnvironmentId = SRC_ENVIRONMENT_ID;

// If no source ENV_ID provided get Source Environment ID to base new PR environment from (aka use the same environment variables)
if (!SRC_ENVIRONMENT_ID) {
srcEnvironmentId = response.environments.edges.filter((edge) => edge.node.name === SRC_ENVIRONMENT_NAME)[0].node.id;
}

// Create the new Environment based on the Source Environment
const createdEnvironment = await createEnvironment(srcEnvironmentId);
console.log("Created Environment:")
console.dir(createdEnvironment, { depth: null })
if (FAIL_IF_EXISTS === 'true') {
throw new Error('Environment already exists. Please delete the environment via API or Railway Dashboard and try again. Alternatively, set the FAIL_IF_EXISTS input to "false" to re-use existing environments.')
}
environemnt = filteredEdges[0].node
console.log("Re-using Environment:")
console.dir(environemnt, { depth: null })
} else {
let srcEnvironmentId = SRC_ENVIRONMENT_ID;

// If no source ENV_ID provided get Source Environment ID to base new PR environment from (aka use the same environment variables)
if (!SRC_ENVIRONMENT_ID) {
srcEnvironmentId = response.environments.edges.filter((edge) => edge.node.name === SRC_ENVIRONMENT_NAME)[0].node.id;
}

// Create the new Environment based on the Source Environment
const createdEnvironment = await createEnvironment(srcEnvironmentId);
environment = createdEnvironment.environmentCreate
console.log("Created Environment:")
console.dir(environment, { depth: null })
}

const { id: environmentId } = createdEnvironment.environmentCreate;
const { id: environmentId } = environment;

// Get all the Deployment Triggers
const deploymentTriggerIds = [];
for (const deploymentTrigger of createdEnvironment.environmentCreate.deploymentTriggers.edges) {
for (const deploymentTrigger of environment.deploymentTriggers.edges) {
const { id: deploymentTriggerId } = deploymentTrigger.node;
deploymentTriggerIds.push(deploymentTriggerId);
}

// Get all the Service Instances
const { serviceInstances } = createdEnvironment.environmentCreate;
const { serviceInstances } = environment;

// Update the Environment Variables on each Service Instance
await updateEnvironmentVariablesForServices(environmentId, serviceInstances, ENV_VARS);
Expand All @@ -356,7 +376,7 @@ async function run() {
const servicesToRedeploy = [];

// Get the names for each deployed service
for (const serviceInstance of createdEnvironment.environmentCreate.serviceInstances.edges) {
for (const serviceInstance of environment.serviceInstances.edges) {
const { domains } = serviceInstance.node;
const { service } = await getService(serviceInstance.node.serviceId);
const { name } = service;
Expand Down