docker-redis - improve lockfile for redis, add redis-insights, make sure app image has all it needs to build canvas

Signed-off-by: Dave Richer <dave@imexsystems.ca>

Dockerfile

@@ -18,6 +18,8 @@ RUN dnf install -y \
     giflib-devel \
     libpng-devel \
     make \
+    python3 \
+    python3-pip \
     && dnf clean all
 
 # Set the working directory
@@ -39,4 +41,4 @@ COPY . .
 EXPOSE 4000
 
 # Start the application
-CMD ["nodemon", "--legacy-watch", "server.js"]
+CMD ["nodemon", "--exitcrash" , "--legacy-watch", "server.js"]

docker-compose.yml

@@ -1,55 +1,60 @@
-version: '3.9'
-
 services:
   redis-node-1:
     build:
       context: ./redis
     container_name: redis-node-1
     hostname: redis-node-1
+    restart: always
     networks:
       - redis-cluster-net
     volumes:
       - ./redis/dockerdata/redis-node-1:/data
+      - ./redis/dockerdata/lock:/redis-lock
     healthcheck:
       test: ["CMD", "redis-cli", "ping"]
-      interval: 5s
+      interval: 10s
-      timeout: 3s
+      timeout: 5s
-      retries: 5
+      retries: 10
-      
+  
   redis-node-2:
     build:
       context: ./redis
     container_name: redis-node-2
     hostname: redis-node-2
+    restart: always
     networks:
       - redis-cluster-net
     volumes:
       - ./redis/dockerdata/redis-node-2:/data
+      - ./redis/dockerdata/lock:/redis-lock
     healthcheck:
       test: ["CMD", "redis-cli", "ping"]
-      interval: 5s
+      interval: 10s
-      timeout: 3s
+      timeout: 5s
-      retries: 5
+      retries: 10
 
   redis-node-3:
     build:
       context: ./redis
     container_name: redis-node-3
     hostname: redis-node-3
+    restart: always
     networks:
       - redis-cluster-net
     volumes:
       - ./redis/dockerdata/redis-node-3:/data
+      - ./redis/dockerdata/lock:/redis-lock
     healthcheck:
       test: ["CMD", "redis-cli", "ping"]
-      interval: 5s
+      interval: 10s
-      timeout: 3s
+      timeout: 5s
-      retries: 5
+      retries: 10
 
   node-app:
     build:
       context: .
     container_name: node-app
+    hostname: imex-api
     networks:
       - redis-cluster-net
     env_file:
@@ -65,7 +70,7 @@ services:
       - "4000:4000"
     volumes:
       - .:/app
-      - /app/node_modules # Prevents overwriting node_modules
+      - /app/node_modules
 
   socketio-admin-ui:
     image: maitrungduc1410/socket.io-admin-ui
@@ -74,6 +79,16 @@ services:
       - redis-cluster-net
     ports:
       - "3333:80"
+  
+  redis-insight:
+    image: redislabs/redisinsight:latest
+    container_name: redis-insight
+    hostname: redis-insight
+    restart: always
+    ports:
+      - "3334:5540"
+    networks:
+      - redis-cluster-net
 
 networks:
   redis-cluster-net:

redis/dockerdata/.gitignore

@@ -1,3 +1,4 @@
 *
-!lock\
+!lock/
-lock\redis-cluster-init.lock
+lock/*
+!lock/.gitkeep

redis/entrypoint.sh

@@ -1,19 +1,35 @@
 #!/bin/sh
 
+LOCKFILE="/redis-lock/redis-cluster-init.lock"
+
 # Start Redis server in the background
 redis-server /usr/local/etc/redis/redis.conf &
 
 # Wait for Redis server to start
 sleep 5
 
-# Only initialize the cluster from one node to prevent race conditions
+# Only initialize the cluster if the lock file doesn't exist
-if [ "$HOSTNAME" = "redis-node-1" ]; then
+if [ ! -f "$LOCKFILE" ]; then
   echo "Initializing Redis Cluster..."
+
+  # Create lock file to prevent further initialization attempts
+  touch "$LOCKFILE"
+  if [ $? -eq 0 ]; then
+    echo "Lock file created successfully at $LOCKFILE."
+  else
+    echo "Failed to create lock file."
+  fi
+
+  # Initialize the Redis cluster
   yes yes | redis-cli --cluster create \
     redis-node-1:6379 \
     redis-node-2:6379 \
     redis-node-3:6379 \
     --cluster-replicas 0
+
+  echo "Redis Cluster initialized."
+else
+  echo "Cluster already initialized, skipping initialization."
 fi
 
 # Keep the container running