Added entrypoint.sh to support cluster and standalone

Dockerfile

@@ -10,10 +10,6 @@ ARG REDIS_DOWNLOAD_URL="http://download.redis.io/"
 
 ARG REDIS_VERSION="stable"
 
-COPY redis.conf /etc/redis/redis.conf
-
-COPY entrypoint.sh /usr/bin/entrypoint.sh
-
 RUN addgroup -S -g 1000 redis && adduser -S -G redis -u 999 redis && \
     apk add --no-cache su-exec tzdata make curl build-base linux-headers
 
@@ -27,6 +23,8 @@ RUN curl -fL -Lo /tmp/redis-${REDIS_VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}/redis-
     cp -f *.conf /etc/redis && \
     rm -rf /tmp/redis-${REDIS_VERSION}*
 
+COPY entrypoint.sh /usr/bin/entrypoint.sh
+
 VOLUME ["/data"]
 
 WORKDIR /data

entrypoint.sh

@@ -2,6 +2,19 @@
 
 set -eu
 
+generate_common_config() {
+    {
+        echo "bind 0.0.0.0"
+        echo protected-mode yes
+        echo tcp-backlog 511
+        echo timeout 0
+        echo tcp-keepalive 300
+        echo daemonize no
+        echo supervised no
+        echo pidfile /var/run/redis.pid
+    } > /etc/redis/redis.conf
+}
+
 set_redis_password() {
     if [ -z "${REDIS_PASSWORD}" ]; then
         echo "Redis is running without password which is not recommended"
@@ -31,6 +44,7 @@ start_redis() {
 }
 
 main_function() {
+    generate_common_config
     set_redis_password
     redis_mode_setup
     start_redis

redis.conf

-bind 0.0.0.0
-protected-mode yes
-tcp-backlog 511
-timeout 0
-tcp-keepalive 300
-daemonize no
-supervised no
-pidfile /var/run/redis.pid