Add healthcheck endpoints and scripts

11-deploying-containers/Makefile

@@ -9,19 +9,21 @@ compose-up-d:
 
 ###
 
+CIVO_SSH:="ssh://ubuntu@212.2.244.220"
+
 .PHONY: swarm-init
 swarm-init:
-	docker swarm init
+	DOCKER_HOST=${CIVO_SSH} docker swarm init
 
 .PHONY: swarm-deploy-stack
 swarm-deploy-stack:
-	docker stack deploy -c stack.yaml example-app
+	DOCKER_HOST=${CIVO_SSH} docker stack deploy -c docker-swarm.yml example-app
 
 .PHONY: swarm-remove-stack
 swarm-remove-stack:
-	docker stack rm example-app
+	DOCKER_HOST=${CIVO_SSH} docker stack rm example-app
 
 .PHONY: create-secrets
 create-secrets:
-	echo -n "foobarbaz" | docker secret create postgres-passwd -
-	echo -n "postgres://postgres:foobarbaz@db:5432/postgres" | docker secret create database-url -
+	echo -n "foobarbaz" | DOCKER_HOST=${CIVO_SSH} docker secret create postgres-passwd -
+	echo -n "postgres://postgres:foobarbaz@db:5432/postgres" | DOCKER_HOST=${CIVO_SSH} docker secret create database-url -

11-deploying-containers/docker-compose-prod.yml

@@ -7,8 +7,14 @@ services:
     ports:
       - 80:80
     restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost/ping"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   api-node:
-    image: sidpalas/devops-directive-docker-course-api-node:7
+    image: sidpalas/devops-directive-docker-course-api-node:8
     networks:
       - frontend
       - backend
@@ -18,8 +24,14 @@ services:
     environment:
       - DATABASE_URL=postgres://postgres:foobarbaz@db:5432/postgres
     restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "node", "src/healthcheck.js"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   api-golang:
-    image: sidpalas/devops-directive-docker-course-api-golang:6
+    image: sidpalas/devops-directive-docker-course-api-golang:7
     networks:
       - frontend
       - backend
@@ -29,6 +41,12 @@ services:
     environment:
       - DATABASE_URL=postgres://postgres:foobarbaz@db:5432/postgres
     restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "/healthcheck"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   db:
     image: postgres:15.1-alpine
     networks:
@@ -37,6 +55,11 @@ services:
       - pgdata:/var/lib/postgresql/data
     environment:
       - POSTGRES_PASSWORD=foobarbaz
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
 
 volumes:
   pgdata:

11-deploying-containers/docker-swarm.yml

@@ -7,8 +7,14 @@ services:
       - frontend
     ports:
       - 80:80
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost/ping"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   api-node:
-    image: sidpalas/devops-directive-docker-course-api-node:7
+    image: sidpalas/devops-directive-docker-course-api-node:8
     environment:
       - DATABASE_URL_FILE=/run/secrets/database-url
     secrets:
@@ -18,8 +24,14 @@ services:
       - backend
     ports:
       - 3000:3000
+    healthcheck:
+      test: ["CMD", "node", "/usr/src/app/healthcheck.js"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   api-golang:
-    image: sidpalas/devops-directive-docker-course-api-golang:6
+    image: sidpalas/devops-directive-docker-course-api-golang:7
     networks:
       - frontend
       - backend
@@ -29,6 +41,12 @@ services:
       - database-url
     ports:
       - 8080:8080
+    healthcheck:
+      test: ["CMD", "/healthcheck"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
   db:
     image: postgres:15.1-alpine
     networks:
@@ -41,6 +59,11 @@ services:
       - POSTGRES_PASSWORD_FILE=/run/secrets/postgres-passwd
     secrets:
       - postgres-passwd
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
 
 volumes:
   pgdata: