Draft: attach redis

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine
 
-RUN apk add --no-cache curl jq
+RUN apk add --no-cache curl jq util-linux
 
 RUN curl -L https://fly.io/install.sh | FLYCTL_INSTALL=/usr/local sh
 

action.yml

@@ -22,6 +22,9 @@ inputs:
     description: path to a directory containing a fly.toml to clone
   postgres:
     description: Optionally attach the app to a pre-existing Postgres cluster on Fly
+  redis:
+    description: Optionally create a new Redis cluster on Fly and attach it to the app (Will destroy automatically)
+    default: false
   secrets:
     description: Secrets to be set on the app. Separate multiple secrets with a space
   vmsize:

entrypoint.sh

@@ -39,6 +39,7 @@ fi
 # PR was closed - remove the Fly app if one exists and exit.
 if [ "$EVENT_TYPE" = "closed" ]; then
   flyctl apps destroy "$app" -y || true
+  flyctl redis destroy "redis-preview-$app" -y || true
   exit 0
 fi
 
@@ -79,6 +80,16 @@ if [ -n "$INPUT_POSTGRES" ]; then
   flyctl postgres attach "$INPUT_POSTGRES" --app "$app" || true
 fi
 
+# Create a Redis instance if requested.
+if [ "$INPUT_REDIS" == "true" ]; then
+  #  TODO: issue
+  #    Error: regions codes must be specified in a comma-separated when not running interactively
+  REDIS_URL=$(script -q -c "flyctl redis create --enable-eviction --name 'redis-preview-$app' --region '$region' --org '$org'" /dev/null | grep -o "redis://.*")
+  if [ -n "$REDIS_URL" ]; then
+    flyctl secrets set "REDIS_URL"="$REDIS_URL" --app "$app"
+  fi
+fi
+
 # Use remote builders
 if [ -n "$INPUT_REMOTE_ONLY" ]; then
   remote_only="--remote-only"