Dockerfile, additional scripts and minor improvements

.dockerignore

@@ -0,0 +1,5 @@
+Dockerfile
+
+CHANGELOG.md
+README.md
+LICENSE

.github/workflows/build-and-test.yml

@@ -9,6 +9,10 @@ on:
 jobs:
 
   build:
+    strategy:
+      matrix:
+        go-version: [ '1.21', '1.24' ]
+
     runs-on: ubuntu-latest
     steps:
     - name: Install RabbitMQ
@@ -19,7 +23,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.21'
+        go-version: ${{ matrix.go-version }}
 
     - name: Build
       run: go build -v ./...

.github/workflows/build_container.yml

@@ -0,0 +1,42 @@
+name: build-container
+
+on:
+  push:
+    ignore_branches: [ no_test ]
+  pull_request:
+    ignore_branches: [ no_test ]
+
+jobs:
+
+  build_container_scratch:
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Run build_container to generate scratch image
+      run: scripts/build_container -g scratch -e BASE_IMAGE=scratch
+
+  build_container_params:
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Run build_container to generate and image using kaniko
+      run: scripts/build_container --tag kaniko --builder kaniko -t debug -e UID=1234 -e GID=5678
+
+    - name: Load rabbitmq-dump-queue:kaniko image
+      run: docker load -i image.tar
+
+    - name: Test container ids
+      run: docker run --rm --entrypoint= rabbitmq-dump-queue:kaniko /bin/id | grep --color=always '1234' | grep --color=always '5678'
+
+  build_container_test:
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Run scripts/test
+      run: scripts/test

.gitignore

@@ -1,3 +1,8 @@
 /bin
 /release
 /rabbitmq-dump-queue
+
+# exclude data dir
+/data
+# kaniko build tar
+image.tar

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 ## Upcoming
 
+## v0.7.2 (2025-03-11)
+
+* Update the RabbitMQ library to v1.10.0.
+* Update Go to 1.24.
+* Modify main.go to return help when no queue is provided
+* Add Dockerfile and .dockerignore [@drodbar](https://github.com/drodbar).
+* Add build_container and test scripts [@drodbar](https://github.com/drodbar).
+
+
 ## v0.7.1 (2024-01-26)
 
 * Update the RabbitMQ library to v1.9.0.

Dockerfile

@@ -0,0 +1,48 @@
+ARG BASE_IMAGE=gcr.io/distroless/static
+
+# build stage
+FROM golang:alpine AS build
+
+COPY go* main* .
+
+RUN apk add --no-cache git
+
+RUN CGO_ENABLED=0 go build -o rabbitmq-dump-queue .
+
+
+# test stage
+FROM build AS test
+
+ENV GOPATH=''
+ENTRYPOINT [ "go", "test" ]
+
+
+# production stage
+FROM ${BASE_IMAGE} AS production
+ARG UID=65532
+ARG GID=65532
+
+# make latest alpine certs available
+COPY --from=alpine:latest /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+USER ${UID}:${GID}
+
+# copy app binary
+COPY --from=build /go/rabbitmq-dump-queue /usr/local/bin/
+
+ENTRYPOINT [ "rabbitmq-dump-queue" ]
+
+# volume dir to output data
+VOLUME /data
+WORKDIR /data
+
+
+# degug stage
+FROM busybox:stable-uclibc AS busybox
+FROM production AS debug
+
+COPY --from=busybox /bin/id /bin/sh /bin/busybox /bin/
+
+
+# default stage: production
+FROM production

README.md

@@ -1,5 +1,4 @@
 # rabbitmq-dump-queue
-
 Dump messages from a RabbitMQ queue to files, without affecting the queue.
 
 [![build-and-test](https://github.com/dubek/rabbitmq-dump-queue/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/dubek/rabbitmq-dump-queue/actions/workflows/build-and-test.yml)
@@ -17,12 +16,34 @@ If you have [Go](https://golang.org/doc/install) installed, you can install
 rabbitmq-dump-queue from source by running:
 
 ```
-go get github.com/dubek/rabbitmq-dump-queue
+go install github.com/dubek/rabbitmq-dump-queue
 ```
 
 The `rabbitmq-dump-queue` executable will be created in the `$GOPATH/bin`
 directory.
 
+### Compile in docker
+
+If you want to use the application within a root-less container use `scripts/build_container`
+
+``` bash
+$ scripts/build_container -h
+Usage: build_container [OPTIONS]
+
+Options:
+  -b, --builder <builder>  Specify the builder (docker or kaniko).
+  -t, --target <target>    Specify the target (build, test, debug or production).
+                           Default: production.
+  -g, --tag <tag>          Specify the tag.
+                           Default: latest for production target or <target>.
+  -p, --dry-run            Print only mode.
+  -h, --help               Display this help message.
+
+Examples:
+  build_container -b docker -t my-image --tag latest
+  build_container --builder kaniko --target debug
+
+```
 
 ## Usage
 
@@ -123,6 +144,9 @@ To stop the RabbitMQ server container, run:
     docker stop test-rabbitmq
     docker rm test-rabbitmq
 
+Testing with `docker` can simpify the task, simply run:
+
+    bash scripts/test
 
 ## Contributing
 

go.mod

@@ -1,5 +1,5 @@
 module github.com/dubek/rabbitmq-dump-queue
 
-go 1.21
+go 1.24
 
-require github.com/rabbitmq/amqp091-go v1.9.0
+require github.com/rabbitmq/amqp091-go v1.10.0

go.sum

@@ -1,25 +1,4 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rabbitmq/amqp091-go v1.9.0 h1:qrQtyzB4H8BQgEuJwhmVQqVHB9O4+MNDJCCAcpc3Aoo=
-github.com/rabbitmq/amqp091-go v1.9.0/go.mod h1:+jPrT9iY2eLjRaMSRHUhc3z14E/l85kv/f+6luSD3pc=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-go.uber.org/goleak v1.2.1 h1:NBol2c7O1ZokfZ0LEU9K6Whx/KnwvepVetCUhtKja4A=
-go.uber.org/goleak v1.2.1/go.mod h1:qlT2yGI9QafXHhZZLxlSuNsMw3FFLxBr+tBRlmO1xH4=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+github.com/rabbitmq/amqp091-go v1.10.0 h1:STpn5XsHlHGcecLmMFCtg7mqq0RnD+zFr4uzukfVhBw=
+github.com/rabbitmq/amqp091-go v1.10.0/go.mod h1:Hy4jKW5kQART1u+JkDTF9YYOQUHXqMuhrgxOEeS7G4o=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=

main.go

@@ -52,7 +52,9 @@ func dial(amqpURI string) (*amqp091.Connection, error) {
 
 func dumpMessagesFromQueue(amqpURI string, queueName string, maxMessages uint, outputDir string) error {
 	if queueName == "" {
-		return fmt.Errorf("Must supply queue name")
+		error := fmt.Errorf("Must supply queue name")
+		flag.Usage()
+		return error
 	}
 
 	conn, err := dial(amqpURI)

scripts/build_container

@@ -0,0 +1,90 @@
+#!/bin/bash
+
+set -e -o pipefail
+
+usage() {
+    cat << USAGE >&2
+Usage: $0 [OPTIONS]
+
+Options:
+  -b, --builder <builder>  Specify the builder (docker or kaniko).
+  -e, --extra-args <arg=value>  Specify additional build-args.
+  -t, --target <target>    Specify the target (build, test, debug or production).
+                           Default: production.
+  -g, --tag <tag>          Specify the tag.
+                           Default: latest for production target or <target>.
+  -p, --dry-run            Print only mode.
+  -h, --help               Display this help message.
+
+Examples:
+  $0 -b docker -t test --tag latest
+  $0 --builder kaniko --target debug
+  $0 -g local -e UID=\$UID -e GID=\$GID -e BASE_IMAGE=scratch
+
+USAGE
+    exit 1
+}
+
+main() {
+    parse_args "$@"
+    set_default
+    build_image
+}
+
+build_with_docker() {
+    ${DRY_RUN} docker buildx build \
+             -t "${IMAGE_NAME}:${TAG}" \
+             "${BUILD_ARGS[@]}" \
+             --target="${TARGET}" .
+}
+
+build_with_kaniko() {
+    KANIKO_IMG="gcr.io/kaniko-project/executor:latest"
+    ${DRY_RUN} docker run -w /build \
+               -v "$PWD":/build \
+               --rm \
+               "${KANIKO_IMG}" \
+               "${BUILD_ARGS[@]}" \
+               -d "${IMAGE_NAME}:${TAG}" \
+               --target "${TARGET}" \
+               --context . \
+               --no-push \
+               --tar-path=/build/image.tar
+}
+
+parse_args() {
+    set -- "$@" "${EOL:=$(printf '\1\3\3\7')}"  # end-of-list marker
+    while [ "$1" != "$EOL" ]; do
+        opt="$1"; shift
+        case $opt in
+            --builder|-b) BUILDER="$1"; shift; ;;
+            --extra-args|-e) BUILD_ARGS+=( --build-arg "$1" ); shift; ;;
+            --target|-t) TARGET="$1"; shift; ;;
+            --tag|-g) TAG="$1"; shift; ;;
+            --help|-h) usage; ;;
+            --dry-run|-p) DRY_RUN='echo'; ;;
+            *) printf "[ERROR] Unknwon arg [%s]\n" "$opt" >&2; usage; ;;
+        esac
+    done; shift
+}
+
+set_default() {
+    : "${BUILDER:="docker"}"
+    : "${TARGET:="production"}"
+    : "${IMAGE_NAME:="rabbitmq-dump-queue"}"
+    case "$TARGET" in
+      production) DEFAULT_TAG="latest"; ;;
+      *) DEFAULT_TAG="${TARGET}"
+    esac
+    : "${TAG:="$DEFAULT_TAG"}"
+}
+
+build_image() {
+    case $BUILDER in
+        kaniko) build_with_kaniko; ;;
+        docker) build_with_docker; ;;
+        *) echo "[ERROR] Unsupported builder [${BUILDER}]"
+    esac
+}
+
+main "$@"

scripts/test

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -e
+
+DIRNAME="$(dirname "$(readlink -f "$0")")"
+
+: "${RABBITMQ_START_TIMEOUT:=30}"
+
+trap rm_containters EXIT
+trap errors_found ERR
+
+info_msg() { printf "[\033[34mINFO\033[0m] %b\n" "$*"; }
+error_msg() { printf "[\033[31mERROR\033[0m] %b\n" "$*"; }
+
+rm_containters() {
+    docker kill rdq-test >/dev/null 2>&1 || true
+    docker kill rdq-busybox >/dev/null 2>&1 || true
+    docker kill rdq-rabbitmq >/dev/null 2>&1 || true
+}
+
+errors_found() {
+    error_msg "$0 didn't finish correctly: rc [\033[31m$?\033[0m]"
+}
+
+info_msg "Build rabbitmq-dump-queue test image"
+"${DIRNAME}/build_container" --target test >/dev/null 2>&1
+
+info_msg "Start rabbitmq container"
+docker run --network=host --rm -q \
+           --detach \
+           --name rdq-rabbitmq \
+           rabbitmq:4-management >/dev/null
+
+info_msg "Wait for rabbitmq listener up to [\033[32m${RABBITMQ_START_TIMEOUT}s\033[0m]"
+docker run --network=host --rm -q \
+           --name rdq-busybox \
+           -e N="$RABBITMQ_START_TIMEOUT" \
+           busybox \
+           sh -c 'while [ $N -ge 0 ]; do nc -z localhost 5672 >/dev/null && exit 0; sleep 1; N=$((N - 1)); done; exit 1'
+
+info_msg "Run tests"
+docker run --network=host --rm \
+           --name rdq-test\
+           rabbitmq-dump-queue:test