Merge pull request #332 from hngprojects/feature/docker-successful-bu…

…ilds

chore: setup successful docker builds

.github/workflows/development.yml

@@ -178,4 +178,5 @@ jobs:
             gunzip -c /tmp/golang_dev.tar.gz | docker load
             rm -f /tmp/golang_dev.tar.gz
             cd ~/deployments/development
+            bash ./scripts/map_envs.sh app.env POSTGRES_USER=DB_USER POSTGRES_DB=DB_NAME POSTGRES_PASSWORD=PASSWORD
             docker compose -f docker-compose.yml up -d

.github/workflows/development_pr_deploy.yml

@@ -1,6 +1,7 @@
 name: PR Deploy for Development
 on:
   pull_request:
+    branches: [dev]
     types: [opened, synchronize, reopened, closed]
   workflow_dispatch:
 

.github/workflows/production.yml

@@ -181,4 +181,5 @@ jobs:
             gunzip -c /tmp/golang_prod.tar.gz | docker load
             rm -f /tmp/golang_prod.tar.gz
             cd ~/deployments/production
+            bash ./scripts/map_envs.sh app.env POSTGRES_USER=DB_USER POSTGRES_DB=DB_NAME POSTGRES_PASSWORD=PASSWORD
             docker compose -f docker-compose-production.yml up -d

.github/workflows/production_pr_deploy.yml

@@ -1,6 +1,7 @@
 name: PR Deploy for Production
 on:
   pull_request:
+    branches: [main]
     types: [opened, synchronize, reopened, closed]
   workflow_dispatch:
 

.github/workflows/staging.yml

@@ -181,4 +181,5 @@ jobs:
             gunzip -c /tmp/golang_staging.tar.gz | docker load
             rm -f /tmp/golang_staging.tar.gz
             cd ~/deployments/staging
+            bash ./scripts/map_envs.sh app.env POSTGRES_USER=DB_USER POSTGRES_DB=DB_NAME POSTGRES_PASSWORD=PASSWORD
             docker compose -f docker-compose-staging.yml up -d

Dockerfile

@@ -14,8 +14,7 @@ RUN go mod download && go mod verify
 COPY . .
 
 # Build the Go app
-RUN if test -e app.env; then echo 'found app.env'; else mv app-sample.env app.env; fi; \
-    go build -v -o /dist/app-name
+RUN go build -v -o /dist/golang_app
 
 # Wait-for-it stage
 FROM alpine:3.17 as wait
@@ -27,12 +26,12 @@ RUN chmod +x /wait-for-it.sh
 FROM alpine:3.17
 WORKDIR /usr/src/app
 COPY --from=build /usr/src/app ./
-COPY --from=build /dist/app-name /usr/local/bin/app-name
+COPY --from=build /dist/golang_app /usr/local/bin/golang_app
 COPY --from=wait /wait-for-it.sh /wait-for-it.sh
 
 # Install bash (required for wait-for-it script)
 RUN apk add --no-cache bash
 
 # Wait for DB and Redis, then start the application
-# CMD /wait-for-it.sh $DB_HOST:$DB_PORT -t 10 -- /wait-for-it.sh $REDIS_HOST:$REDIS_PORT -t 10 -- app-name
-CMD app-name
+# CMD /wait-for-it.sh $DB_HOST:$DB_PORT -t 10 -- /wait-for-it.sh $REDIS_HOST:$REDIS_PORT -t 10 -- golang_app
+CMD golang_app

docker-compose-production.yml

@@ -3,42 +3,36 @@ name: golang_prod
 services:
   db:
     image: postgres:16
-    environment:
-      POSTGRES_USER: production_user
-      POSTGRES_PASSWORD: password
-      POSTGRES_DB: production_db
-      POSTGRES_PORT: 5432
+    env_file:
+      - app.env
     volumes:
-      - db_data:/var/lib/postgresql/data
+      - ../pgsql_volumes/golang_prod/:/var/lib/postgresql/data
     healthcheck:
-          test: ["CMD-SHELL", "pg_isready -U postgres"]
-          interval: 10s
-          timeout: 10s
-          retries: 2
+      test: ["CMD-SHELL", "pg_isready -U production_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 2
 
   redis:
     image: redis:latest
 
   backend:
-    image: ${COMPOSE_PROJECT_NAME}
+    image: golang_prod
     build:
       context: .
     depends_on:
-      - db
-      - redis
-    ports:
-      - "8002:7002"
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_started
     env_file:
       - app.env
 
   nginx:
     image: nginx:latest
-    ports:
-      - "8117:80"
     depends_on:
       - backend
+    ports:
+      - "7002:80"
     volumes:
       - ./nginx/nginx.prod.conf:/etc/nginx/nginx.conf
-
-volumes:
-  db_data:

docker-compose-staging.yml

@@ -3,42 +3,36 @@ name: golang_staging
 services:
   db:
     image: postgres:16
-    environment:
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: password
-      POSTGRES_DB: db_name
-      POSTGRES_PORT: 5432
+    env_file:
+      - app.env
     volumes:
-      - db_data:/var/lib/postgresql/data
+      - ../pgsql_volumes/golang_staging/:/var/lib/postgresql/data
     healthcheck:
-          test: ["CMD-SHELL", "pg_isready -U postgres"]
-          interval: 10s
-          timeout: 10s
-          retries: 2
+      test: ["CMD-SHELL", "pg_isready -U staging_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 2
 
   redis:
     image: redis:latest
 
   backend:
-    image: ${COMPOSE_PROJECT_NAME}
+    image: golang_staging
     build:
       context: .
     depends_on:
-      - db
-      - redis
-    ports:
-      - "8001:7010"
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_started
     env_file:
       - app.env
 
   nginx:
     image: nginx:latest
-    ports:
-      - "8116:80"
     depends_on:
       - backend
+    ports:
+      - "7001:80"
     volumes:
       - ./nginx/nginx.staging.conf:/etc/nginx/nginx.conf
-
-volumes:
-  db_data:

docker-compose.yml

@@ -1,34 +1,38 @@
-name: golang
+name: golang_dev
 
 services:
   db:
     image: postgres:16
     env_file:
-      - ./app.env
+      - app.env
     volumes:
-      - db_data:/var/lib/postgresql/data
+      - ../pgsql_volumes/golang_dev/:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U development_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 2
 
   redis:
     image: redis:latest
 
   backend:
-    image: golang_backend
+    image: golang_dev
     build:
       context: .
     depends_on:
-      - db
-      - redis
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_started
     env_file:
-      - ./app.env
-    
+      - app.env
+
   nginx:
     image: nginx:latest
-    ports:
-      - "7000:80"
     depends_on:
       - backend
+    ports:
+      - "7000:80"
     volumes:
       - ./nginx.conf:/etc/nginx/nginx.conf
-
-volumes:
-  db_data:

scripts/map_envs.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+if [ "$#" -lt 2 ]; then
+    echo "Description: creates new environment variables from existing ones"
+    echo "Usage: $0 .env_file NEW_ENV1=EXISTING_ENV1 [NEW_ENV2=EXISTING_ENV2 ...]"
+    exit 1
+fi
+
+env_file="$1"
+shift
+
+if [ ! -f "$env_file" ]; then
+    echo "Error: .env file '$env_file' not found."
+    exit 1
+fi
+
+export $(grep -v '^#' "$env_file" | xargs)
+
+for arg in "$@"; do
+    IFS='=' read -r new_env existing_env <<< "$arg"
+
+    if [ -z "${!existing_env}" ]; then
+        echo "Warning: Existing environment variable '$existing_env' is not set."
+        continue
+    fi
+
+    # Get the value of the existing environment variable
+    value="${!existing_env}"
+
+    # Export the new environment variable with the value of the existing one
+    export "$new_env=$value"
+done
+
+# Write the new environment variables to the .env file
+{
+    echo
+    for arg in "$@"; do
+        IFS='=' read -r new_env _ <<< "$arg"
+        echo "$new_env=${!new_env}"
+    done
+} >> "$env_file"