Up to the stars

.dockerignore

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+.env
+node_modules/

.github/workflows/publish.yml

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+name: Create a container
+
+on:
+  push:
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+jobs:
+
+  # Push image to GitHub Packages.
+  # See also https://docs.docker.com/docker-hub/builds/
+  push:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Build image
+        run: docker build . --file Dockerfile --tag image
+
+      - name: Log into registry
+        run: echo "${{ secrets.CR_PAT }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository }}
+
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          # Strip "v" prefix from tag name
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          # keep only the major.minor release, no patch
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/\.[0-9]*$//')
+
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+
+          docker tag image $IMAGE_ID:$VERSION
+          docker push $IMAGE_ID:$VERSION

.gitignore

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+.env
+node_modules/

Dockerfile

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+
+FROM node:14.13.0-alpine3.12
+LABEL maintainer="Daniel Rataj <daniel.rataj@centrum.cz>"
+LABEL org.opencontainers.image.source="https://github.com/whoopsmonitor/whoopsmonitor-check-json-expect"
+LABEL com.whoopsmonitor.documentation="https://github.com/whoopsmonitor/whoopsmonitor-check-json-expect"
+LABEL com.whoopsmonitor.env.WM_API_ENDPOINT="https://"
+LABEL com.whoopsmonitor.env.WM_EXPECT="status/number/=/200"
+
+WORKDIR /app
+COPY ./src/index.js ./src/index.js
+COPY ./package.json ./package.json
+COPY ./package-lock.json ./package-lock.json
+
+RUN npm install
+
+CMD [ "npm", "start", "--silent" ]

README.md

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+# whoopsmonitor-check-json-expect
+
+Get remote JSON response and search for some specific results such as string, number.
+
+## Environmental variables
+
+-   `WM_API_ENDPOINT` API endpoint to call.
+-   `WM_EXPECT` Comma separated list of items.
+
+### WM_EXPECT
+
+It is separated into four parts separated with a slash.
+
+-   `key` The name of the key to search in response.
+-   `rule`
+    -   `string`
+    -   `number`, `integer`
+    -   `boolean`
+-   `operator`
+    -   string
+        -   `eq`, `=` (exact match)
+        -   `*=` (partial match)
+    -   numbers
+        -   `eq`, `=` (exact match)
+        -   `gt`, `>` - greater than (numbers)
+        -   `lt`, `<` - lower than (numbers)
+-   `value` Compared value.
+
+## Example
+
+There is an example of the check at Whoops Monitor configuration tab or the `.env` file.
+
+```yaml
+WM_API_ENDPOINT=https://localhost:1337
+WM_EXPECT=data.db/boolean/=/true
+```
+
+```yaml
+WM_API_ENDPOINT=https://localhost:1337
+WM_EXPECT=data.db/number/gt/100
+```
+
+## Output
+
+-   `0` - Data founded in the format as expected.
+-   `2` - Data does not have a proper format.
+
+## Build
+
+```sh
+docker build -t whoopsmonitor-check-json-expect .
+```
+
+## Run
+
+```bash
+docker run --rm --env-file .env whoopsmonitor-check-json-expect
+```