Initial CI setup

.github/issue_template.md

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+**Describe the solution you'd like**
+Describe the end goal of this proposal. What is this new functionality or the new behaviour (or what problem does it fix)? 
+
+**What is the added value?**
+Explain the value that it adds. e.g. "Secret refreshing will make internal secrets up to date with external secrets".
+
+**Give us examples of the outcome**
+
+Provide templates if you are proposing changes in the CRD. Provide example workflows or code snippets if they make sense to present.
+
+**Observations (Constraints, Context, etc):**
+
+Give here all extra information that could be interesting. Such as Golang version and Kubernetes version if you are reporting a bug/problem. You can also foresee technical constrains like "this could only be implementing using this specific technology or approach, because of this and that".

.github/workflows/all.yml

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+name: CI
+
+on:
+  push:
+    branches:    
+      - '*'         # matches every branch that doesn't contain a '/'
+      - '*/*'       # matches every branch containing a single '/'
+      - '**'        # matches every branch
+      - '!main'     # excludes main
+
+env: 
+  KUBEBUILDER_VERSION: 2.3.1
+
+jobs:
+
+  build:
+    name: Build
+    container: 
+      image: golang:1.15
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        
+    - name: Add kubebuilder
+      run:  |
+        curl -L https://github.com/kubernetes-sigs/kubebuilder/releases/download/v${{env.KUBEBUILDER_VERSION}}/kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz > kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz
+        tar -xvf kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz
+        mv kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64 /usr/local/kubebuilder
+
+    - name: Vet and Build
+      run: make manager
+
+    - name: Test
+      run: make test
+
+    - name: Coverage
+      uses: codecov/codecov-action@v1
+      with:
+        # token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+        file: ./cover.out
+        # flags: unittests # optional
+        name: externalsecret-operator
+        fail_ci_if_error: true 
+
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+    - name: Prepare
+      id: prep
+      run: |
+        DOCKER_IMAGE=ghcr.io/external-secrets/external-secrets
+
+        VERSION=edge
+        if [[ $GITHUB_REF == refs/tags/* ]]; then
+          VERSION=${GITHUB_REF#refs/tags/}
+        elif [[ $GITHUB_REF == refs/heads/* ]]; then
+          VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
+        elif [[ $GITHUB_REF == refs/pull/* ]]; then
+          VERSION=pr-${{ github.event.number }}
+        fi
+
+        TAGS="${DOCKER_IMAGE}:${VERSION}"
+        if [ "${{ github.event_name }}" = "push" ]; then
+          TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
+        fi
+
+        echo ::set-output name=version::${VERSION}
+        echo ::set-output name=tags::${TAGS}
+        echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+        echo ::set-output name=push_image::$PUSH_IMAGE
+
+    - name: Check out the repo
+      uses: actions/checkout@v2
+      
+    - name: Set up QEMU
+      id: qemu
+      uses: docker/setup-qemu-action@v1
+      with:
+        platforms: all
+
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+      
+    - name: Build
+      id: docker_build
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./Dockerfile
+        builder: ${{ steps.buildx.outputs.name }}
+        platforms: linux/amd64,linux/arm/v7,linux/arm64
+        tags: ${{ steps.prep.outputs.tags }}
+        push: false
+        labels: |
+          org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+          org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+          org.opencontainers.image.revision=${{ github.sha }}
+          
+    - name: Image digest
+      run: echo ${{ steps.docker_build.outputs.digest }}

.github/workflows/main.yml

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+name: CI
+
+on:
+  push:
+    branches: [ master ]
+    tags:
+      - '*'
+  pull_request:
+    branches: [ master ]
+
+env: 
+  KUBEBUILDER_VERSION: 2.3.1
+
+jobs:
+
+  build:
+    name: Build
+    container: 
+      image: golang:1.15
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        
+    - name: Add kubebuilder
+      run:  |
+        curl -L https://github.com/kubernetes-sigs/kubebuilder/releases/download/v${{env.KUBEBUILDER_VERSION}}/kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz > kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz
+        tar -xvf kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64.tar.gz
+        mv kubebuilder_${{env.KUBEBUILDER_VERSION}}_linux_amd64 /usr/local/kubebuilder
+
+    - name: Vet and Build
+      run: make manager
+
+    - name: Test
+      run: make test
+
+    - name: Coverage
+      uses: codecov/codecov-action@v1
+      with:
+        # token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+        file: ./cover.out
+        # flags: unittests # optional
+        name: externalsecret-operator
+        fail_ci_if_error: true 
+
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+    - name: Prepare
+      id: prep
+      run: |
+        DOCKER_IMAGE=ghcr.io/external-secrets/external-secrets
+
+        VERSION=edge
+        if [[ $GITHUB_REF == refs/tags/* ]]; then
+          VERSION=${GITHUB_REF#refs/tags/}
+        elif [[ $GITHUB_REF == refs/heads/* ]]; then
+          VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
+        elif [[ $GITHUB_REF == refs/pull/* ]]; then
+          VERSION=pr-${{ github.event.number }}
+        fi
+
+        TAGS="${DOCKER_IMAGE}:${VERSION}"
+        if [ "${{ github.event_name }}" = "push" ]; then
+          TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
+        fi
+
+        PUSH_IMAGE=true
+        REPO_FULL_NAME="${{ github.event.pull_request.head.repo.full_name }}"
+        # If this is both a pull request and a fork, then don't push the image
+        if [[ ${{ github.event_name }} == pull_request ]]; then
+          if [[ $REPO_FULL_NAME != external-secrets/xternal-secrets ]]; then
+            PUSH_IMAGE=false
+          fi
+        fi
+
+        echo ::set-output name=version::${VERSION}
+        echo ::set-output name=tags::${TAGS}
+        echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+        echo ::set-output name=push_image::$PUSH_IMAGE
+
+    - name: Check out the repo
+      uses: actions/checkout@v2
+      
+    - name: Set up QEMU
+      id: qemu
+      uses: docker/setup-qemu-action@v1
+      with:
+        platforms: all
+
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+      
+    - name: Login to Github Packages
+      id: docker-login
+      uses: docker/login-action@v1
+      with:
+        registry: docker.pkg.github.com
+        username: external-secrets
+        password: ${{ secrets.GITHUB_TOKEN }}
+      if: ${{ steps.prep.outputs.push_image == 'true' }}
+
+    - name: Build and push
+      id: docker_build
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./Dockerfile
+        builder: ${{ steps.buildx.outputs.name }}
+        platforms: linux/amd64,linux/arm/v7,linux/arm64
+        tags: ${{ steps.prep.outputs.tags }}
+        push: ${{ steps.prep.outputs.push_image }}
+        labels: |
+          org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+          org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+          org.opencontainers.image.revision=${{ github.sha }}
+          
+    - name: Image digest
+      run: echo ${{ steps.docker_build.outputs.digest }}