feat: change maxmemory from env during deploy

.woodpecker.yml

@@ -6,7 +6,7 @@ pipeline:
       username: sutty
       repo: registry.nulo.in/sutty/redis
       tags:
-      - ${ALPINE_VERSION}-${MAX_MEMORY}
+      - ${ALPINE_VERSION}
       - latest
       build_args:
       - MAX_MEMORY=${MAX_MEMORY}
@@ -21,11 +21,8 @@ pipeline:
 matrix:
   include:
   - MAX_MEMORY: "500mb"
-    ALPINE_VERSION: "3.16.2"
+    ALPINE_VERSION: "3.17.0"
+    REDIS_VERSION: "7.0.5"
+  - MAX_MEMORY: "500mb"
+    ALPINE_VERSION: "3.16.3"
     REDIS_VERSION: "7.0.4"
-  - MAX_MEMORY: "100mb"
-    ALPINE_VERSION: "3.16.2"
-    REDIS_VERSION: "7.0.4"
-  - MAX_MEMORY: "100mb"
-    ALPINE_VERSION: "3.15.6"
-    REDIS_VERSION: "6.2.7"

redisd.sh

@@ -5,6 +5,7 @@ run=/run/redis
 case $1 in
   start)
     install -dm 750 -o redis -g redis $run
+    sed -re "s/^(maxmemory ).*/\1${MAX_MEMORY}/" -i /etc/redis.conf
     su-exec redis /usr/bin/redis-server /etc/redis.conf
     ;;
   stop)