Add option to manually set delay before healthcheck is performed

.github/workflows/main.yml

@@ -45,6 +45,7 @@ jobs:
           appdir: "tests/test-2"
           buildpack: "https://github.com/heroku/heroku-buildpack-static.git"
           healthcheck: "https://akhileshns-hd-test-2.herokuapp.com/"
+          delay: 5
       - run: npm run test-action https://akhileshns-hd-test-2.herokuapp.com/
 
   deploy-test-3:

README.md

@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -73,6 +73,7 @@ The action comes with additional options that you can use to configure your proj
 | appdir                     | false    | Set if your app is located in a subdirectory                                                                                                                                                        | api, apis/python                                      |
 | healthcheck                | false    | A URL to which a healthcheck is performed (checks for 200 request)                                                                                                                                  | https://demo-rest-api.herokuapp.com                   |
 | checkstring                | false    | Value to check for when conducting healthcheck requests                                                                                                                                             | ok                                                    |
+| delay                      | false    | Time (in seconds) to wait before performing healthcheck. Defaults to 0 seconds                                                                                                                      | 5                                                     |
 | procfile                   | false    | Contents of the Procfile to save and deploy                                                                                                                                                         | web: npm start                                        |
 
 ## Examples
@@ -96,7 +97,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -131,7 +132,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -158,7 +159,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -187,7 +188,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -216,7 +217,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -247,7 +248,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -258,6 +259,37 @@ jobs:
 
 This will essentially check if the value returned by sending a GET request to the **healthcheck** url is equal to the **checkstring**
 
+### Adding Delay
+
+In some cases, a healthcheck ends up being performed before the application has been setup on Heroku. To counter this, you can manually set the **delay** option in the action to make the action wait a certain period of time (in seconds) before performing the healthcheck
+
+_.github/workflows/main.yml_
+
+```yaml
+name: Deploy
+
+on:
+  push:
+    branches:
+      - master # Changing the branch here would also work
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: akhileshns/[email protected] # This is the action
+        with:
+          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
+          heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
+          heroku_email: "YOUR EMAIL"
+          healthcheck: "https://[YOUR APP's NAME].herokuapp.com/health"
+          checkstring: "ok"
+          delay: 5
+```
+
+By default, the delay will be 0 if you choose to not set it
+
 ## Environment Variables
 
 Heroku offers a means of passing sensitive information to your app (such as api keys etc) via something it calls **config vars** which you can find in the settings of your heroku app. But sometimes you might want to store sensitive information (api keys etc) in GitHub Secrets instead just to ensure platform independence. If you choose to this, you can then pass those secrets to your heroku app by using the "env" object of the action:-
@@ -277,7 +309,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku
@@ -312,7 +344,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.2.6 # This is the action
+      - uses: akhileshns/heroku-deploy@v3.3.6 # This is the action
         with:
           heroku_api_key: ${{secrets.HEROKU_API_KEY}}
           heroku_app_name: "YOUR APP's NAME" #Must be unique in Heroku

action.yml

@@ -44,6 +44,10 @@ inputs:
     description: "Value to check for when conducting healthcheck request"
     required: false
     default: ""
+  delay:
+    description: "Time (in seconds) to wait before performing healthcheck"
+    required: false
+    default: "0"
   procfile:
     description: "Contents of the Procfile to save and deploy"
     required: false

index.js

@@ -5,6 +5,8 @@ const fs = require("fs");
 const path = require("path");
 
 // Support Functions
+const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+
 const createCatFile = ({ email, api_key }) => `cat >~/.netrc <<EOF
 machine api.heroku.com
     login ${email}
@@ -90,6 +92,7 @@ let heroku = {
   appdir: core.getInput("appdir"),
   healthcheck: core.getInput("healthcheck"),
   checkstring: core.getInput("checkstring"),
+  delay: parseInt(core.getInput("delay")),
   procfile: core.getInput("procfile"),
 };
 
@@ -146,6 +149,10 @@ if (heroku.appdir) {
     }
 
     if (heroku.healthcheck) {
+      if (typeof heroku.delay === "number" && heroku.delay !== NaN) {
+        await sleep(heroku.delay * 1000);
+      }
+
       try {
         const res = await p(heroku.healthcheck);
         if (heroku.checkstring && heroku.checkstring !== res.body.toString()) {