Rebase CI environment on alpine linux

.drone.yml

@@ -3,28 +3,28 @@ kind: pipeline
 name: default
 
 steps:
-- name: fetch-dependencies
-  image: edurable/apmbc-reporting-build-environment:latest
-  commands:
-    - mix deps.get
 - name: build-release
-  image: edurable/apmbc-reporting-build-environment:latest
+  image: alpine:3.15
   environment:
     MIX_ENV: prod
   commands:
+    - apk add elixir git make gcc libc-dev
+    - mix local.hex --force
+    - mix local.rebar --force
+    - mix deps.get
     - mix compile
     - mix phx.digest
     - mix release
     - cd _build/prod/rel
     - tar czf "meta-$(git describe --exact-match --tags $(git log -n1 --pretty='%h') || git rev-parse HEAD).tar.gz" meta/
 - name: publish-release-archive
-  image: edurable/apmbc-reporting-build-environment:latest
+  image: alpine:3.15
   environment:
     LFTP_PASSWORD:
       from_secret: ssh_password
   commands:
+    - apk add lftp openssh-client git
     - cd _build/prod/rel
-    - apt-get install -y lftp
     - mkdir ~/.ssh
     - ssh-keyscan static.recycled.cloud > ~/.ssh/known_hosts
     - lftp "sftp://artifacts:$LFTP_PASSWORD@static.recycled.cloud" -e "cd htdocs; put meta-$(git describe --exact-match --tags $(git log -n1 --pretty='%h') || git rev-parse HEAD).tar.gz; bye"