Add configuration options

.gitignore

 .idea
 *.iml
+config/.s3cfg
+config/bucket
+config/expire_age_days

.gitlab-ci.yml

@@ -44,6 +44,6 @@ build:dev:
   stage: deploy
   script:
     - docker build --pull -t "$CI_REGISTRY_IMAGE:dev" ./context/
-    #- docker push "$CI_REGISTRY_IMAGE:dev"
+    - docker push "$CI_REGISTRY_IMAGE:dev"
   except:
     - master

README.md

 # s3-object-expirer
 
-Expire (delete) S3 objects older than a given age.
+Expire (delete) S3 objects older than a given age.
\ No newline at end of file
+
+## Usage
+
+1. Copy `./config/example.s3cfg` to `./config/.s3cfg` and enter your bucket details.
+1. Create `./config/bucket` with the name of the bucket to purge.
+1. Create `./config/expire_age_days` with a number that specifies the maximum age of items in the bucket. Anything created more than that many days ago will be purged.
+1. `docker-compose up`

config/example.s3cfg

+[default]
+access_key =
+secret_key =
+host_base =
+host_bucket =
+bucket_location =

context/Dockerfile

@@ -10,3 +10,6 @@ RUN apt-get update \
         s4cmd \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
+
+ADD s3-purge.sh /usr/local/bin/s3-purge
+ADD crontab /etc/cron.d/s3-purge

context/crontab

+20 1 * * * root s3-purge > /var/log/s3-purge 2>/dev/null

context/s3-purge.sh

 #!/bin/bash
 
-# Usage: ./deleteOld "bucketname" "30 days"
+export BUCKET_NAME=$(cat /s3_bucket)
+export EXPIRE_AGE_DAYS=$(cat /s3_expire_days)
 
-s3cmd ls s3://$1 | while read -r line;
+s4cmd --config=/s3_config ls s3://$BUCKET_NAME | while read -r line;
   do
     createDate=`echo $line|awk {'print $1" "$2'}`
     createDate=`date -d"$createDate" +%s`
-    olderThan=`date -d"-$2" +%s`
+    olderThan=`date -d"-$EXPIRE_AGE_DAYS" +%s`
     if [[ $createDate -lt $olderThan ]]
       then
         fileName=`echo $line|awk {'print $4'}`
         echo $fileName
         if [[ $fileName != "" ]]
           then
-            s3cmd del "$fileName"
+            s4cmd --config=/s3_config del "$fileName"
         fi
     fi
   done;

docker-compose.yml

+version: "3.7"
+services:
+  s3_object_expirer:
+    image: containers.ethitter.com:443/docker/s3-object-expirer/s3-object-exporer:latest
+    restart: unless-stopped
+configs:
+  s3_config:
+    file: ./config/.s3cfg
+  s3_bucket:
+    file: ./config/bucket
+  s3_expire_days:
+    file: ./config/expire_age_days