Merge pull request #58 from hasnat/add_tests

Try tests via docker-compose

.dockerignore

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+.github
+.gitignore
+.dockerignore
+Dockerfile
+tests

tests/README.md

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+# Docker Autoheal Tests
+
+Docker Compose is used to build and deploy test environment.
+
+test.sh waits on watch-autoheal exit code.
+
+Currently setup to a very basic exit 1 on invalid restart and exit 0 on valid restart. 
+
+## Run tests
+```
+cd tests
+./tests.sh
+```

tests/docker-compose.autoheal.yml

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+version: '3.7'
+
+services:
+
+  watch-autoheal:
+    container_name: watch-autoheal
+    build: watch-autoheal
+    restart: "no"
+    volumes:
+      - "/var/run/docker.sock:/var/run/docker.sock"
+    network_mode: none

tests/docker-compose.yml

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+version: '3.7'
+
+services:
+
+  should-keep-restarting:
+    image: alpine
+    container_name: should-keep-restarting
+    network_mode: none
+    restart: "no"
+    healthcheck:
+      test: exit 1
+      interval: 3s
+      timeout: 1s
+      retries: 3
+      start_period: 5s
+    command: tail -f /dev/null
+
+  shouldnt-restart:
+    image: alpine
+    container_name: shouldnt-restart
+    network_mode: none
+    restart: "no"
+    healthcheck:
+      test: exit 0
+      interval: 2s
+      timeout: 1s
+      retries: 1
+      start_period: 1s
+    command: tail -f /dev/null
+
+
+  autoheal:
+    container_name: autoheal
+    build:
+      context: ../
+    restart: unless-stopped
+    environment:
+      AUTOHEAL_CONTAINER_LABEL: "all"
+      AUTOHEAL_INTERVAL: "10"
+    volumes:
+      - "/var/run/docker.sock:/var/run/docker.sock"
+    network_mode: none

tests/tests.sh

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+#!/usr/bin/env bash
+set -euxo pipefail
+
+COMPOSE_PROJECT_NAME=autoheal-test
+
+function cleanup()
+{
+    exit_status=$?
+    echo "exit was $exit_status"
+    docker-compose -f docker-compose.autoheal.yml -f docker-compose.yml rm -f || true
+    exit "$exit_status"
+}
+trap cleanup EXIT
+docker-compose up --build -d
+docker-compose -f docker-compose.autoheal.yml up --build --exit-code-from watch-autoheal watch-autoheal
+

tests/watch-autoheal/Dockerfile

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+FROM alpine:latest
+
+RUN apk --update add bash docker
+
+
+WORKDIR /app
+COPY . .
+
+ENTRYPOINT ["/app/entrypoint.sh"]

tests/watch-autoheal/entrypoint.sh

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+#!/usr/bin/env bash
+set -euxo pipefail
+
+listenToDockerEvents()
+{
+docker events --filter 'container=should-keep-restarting' --filter 'container=shouldnt-restart' --filter 'event=restart' | while read LOGLINE
+do
+  echo "$LOGLINE"
+  # may be more elaborate checks here.
+   [[ "${LOGLINE}" == *"container restart "*"name=shouldnt-restart"* ]] && echo "ERR: No restarts expected on shouldnt-restart container!" && pkill -9 docker && exit 1
+   [[ "${LOGLINE}" == *"container restart "*"name=should-keep-restarting"* ]] && echo "OK: Expected restart on should-keep-restarting container!" && pkill -9 docker && exit 0
+done
+
+}
+
+export -f listenToDockerEvents
+timeout 60s bash -c listenToDockerEvents