Add Dockerfile and Github workflows

Signed-off-by: Johann Hoffmann <johann.hoffmann@mailbox.org>

.dockerignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+.git
+.github
+Dockerfile
+helm

.github/workflows/ci.yml

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+name: Build Docker image
+
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+    branches:
+      - main
+      - 'release/*'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - main
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  docker:
+    runs-on: ubuntu-20.04
+    env:
+      DOCKER_REGISTRY_URL: tip-tip-wlan-cloud-ucentral.jfrog.io
+      DOCKER_REGISTRY_USERNAME: ucentral
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Build Docker image
+      run: docker build -t owprov-ui:${{ github.sha }} .
+
+    - name: Tag Docker image
+      run: |
+        TAGS="${{ github.sha }}"
+
+        if [[ ${GITHUB_REF} == "refs/heads/"* ]]
+        then
+          CURRENT_TAG=$(echo ${GITHUB_REF#refs/heads/} | tr '/' '-')
+          TAGS="$TAGS $CURRENT_TAG"
+        else
+          if [[ ${GITHUB_REF} == "refs/tags/"* ]]
+          then
+            CURRENT_TAG=$(echo ${GITHUB_REF#refs/tags/} | tr '/' '-')
+            TAGS="$TAGS $CURRENT_TAG"
+          else # PR build
+            CURRENT_TAG=$(echo ${GITHUB_HEAD_REF#refs/heads/} | tr '/' '-')
+            TAGS="$TAGS $CURRENT_TAG"
+          fi
+        fi
+
+        echo "Result tags: $TAGS"
+
+        for tag in $TAGS; do
+          docker tag owprov-ui:${{ github.sha }} ${{ env.DOCKER_REGISTRY_URL }}/owprov-ui:$tag
+        done
+
+    - name: Log into Docker registry
+      if: startsWith(github.ref, 'refs/tags/') || startsWith(github.ref, 'refs/pull/') || github.ref == 'refs/heads/main'
+      uses: docker/login-action@v1
+      with:
+        registry: ${{ env.DOCKER_REGISTRY_URL }}
+        username: ${{ env.DOCKER_REGISTRY_USERNAME }}
+        password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+
+    - name: Push Docker images
+      if: startsWith(github.ref, 'refs/tags/') || startsWith(github.ref, 'refs/pull/') || github.ref == 'refs/heads/main'
+      run: |
+        docker images | grep ${{ env.DOCKER_REGISTRY_URL }}/owprov-ui | awk -F ' ' '{print $1":"$2}' | xargs -I {} docker push {}

.github/workflows/cleanup.yml

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+name: Clean up PR Docker images
+
+on:
+  pull_request:
+    branches:
+      - main
+    types: [ closed ]
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  cleanup:
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          export PR_BRANCH_TAG=$(echo ${GITHUB_HEAD_REF#refs/heads/} | tr '/' '-')
+          curl -uucentral:${{ secrets.DOCKER_REGISTRY_PASSWORD }} -X DELETE "https://tip.jfrog.io/artifactory/tip-wlan-cloud-ucentral/owprov-ui/$PR_BRANCH_TAG"

Dockerfile

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+FROM node:14-alpine3.14 AS build
+COPY package.json package-lock.json /
+COPY . .
+RUN npm install
+RUN npm run build
+
+FROM nginx:1.21.3-alpine AS runtime
+COPY --from=build /build/ /usr/share/nginx/html/
+COPY --from=build docker-entrypoint.d/40-generate-config.sh /docker-entrypoint.d/40-generate-config.sh

docker-entrypoint.d/40-generate-config.sh

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+#!/bin/ash
+# Check if variables are set
+export DEFAULT_UCENTRALSEC_URL="${DEFAULT_UCENTRALSEC_URL:-https://localhost:16001}"
+export ALLOW_UCENTRALSEC_CHANGE="${ALLOW_UCENTRALSEC_CHANGE:-false}"
+
+echo '{"DEFAULT_UCENTRALSEC_URL": "'$DEFAULT_UCENTRALSEC_URL'","ALLOW_UCENTRALSEC_CHANGE": '$ALLOW_UCENTRALSEC_CHANGE'}' > /usr/share/nginx/html/config.json