Add deploy job and deploy script

.gitlab-ci.yml

@@ -1,5 +1,6 @@
 stages:
   - test-lint-format
+  - deploy
 
 .job_setup:
   image: python:3.9
@@ -30,3 +31,18 @@ pytest:
   artifacts:
     reports:
       cobertura: coverage.xml
+
+deploy:
+  stage: deploy
+  only:
+    - develop
+  before_script:
+    # https://docs.gitlab.com/ee/ci/ssh_keys/#ssh-keys-when-using-the-docker-executor
+    - "command -v ssh-agent >/dev/null || ( apt-get update -y && apt-get install openssh-client -y )"
+    - eval $(ssh-agent -s)
+    - echo "${VPS_DEPLOYMENT_PRIVATE_KEY}" | tr -d '\r' | ssh-add -
+    - mkdir -p ~/.ssh
+    - chmod 700 ~/.ssh
+  script:
+    - echo "Deploying ${CI_COMMIT_BRANCH}:${CI_COMMIT_SHA} ..."
+    - ssh musicube@${VPS_HOST} -o StrictHostKeyChecking=no -p ${VPS_SSH_PORT} "cd musicube; ./deploy.sh $CI_COMMIT_BRANCH"

Makefile

@@ -1,9 +1,13 @@
+include docker.env
+export $(shell sed 's/=.*//' docker.env)
+
+SHELL = /bin/bash
 GIT_COMMIT != git log --pretty=format:'%h' -n 1
 
+
 build:
-	source <(cat docker.env | sed -e 's/^/export /g')
 	docker build \
-	  --build-arg DISCORD_BOT_TOKEN=${DISCORD_BOT_TOKEN} \
+		--build-arg DISCORD_BOT_TOKEN=${DISCORD_BOT_TOKEN} \
 		--build-arg YOUTUBE_COOKIES=${YOUTUBE_COOKIES} \
 		--build-arg GIT_COMMIT=${GIT_COMMIT} \
 		-t musicube:${GIT_COMMIT} -t musicube:latest \

README.md

@@ -42,6 +42,13 @@ Requirements:
 ```
 $ docker --version
 Docker version 20.10.8, build 3967b7d28e
+$ make --version
+GNU Make 4.3
+Built for x86_64-pc-linux-gnu
+Copyright (C) 1988-2020 Free Software Foundation, Inc.
+License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law.
 ```
 
 Build image:

deploy.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+BRANCH="$1"
+
+# Exit immediately if a command fails
+set -e
+# Log every command
+set -x
+
+git status
+git fetch
+git checkout "$BRANCH"
+git pull --ff-only
+make build
+docker stop musicube || true
+docker run --rm --detach --name musicube musicube