Add mysql-proxy
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66
.github/workflows/mysql-proxy.yml
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66
.github/workflows/mysql-proxy.yml
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name: Build MySQL Proxy
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on:
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push:
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paths:
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- '.github/workflows/mysql-proxy.yml'
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- 'mysql-proxy/**'
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pull_request:
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branches:
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- '!dependabot/**'
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workflow_run:
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workflows:
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- Build PHP Flavours
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branches: [ 'master', 'feature/**' ]
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types:
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- completed
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workflow_dispatch:
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jobs:
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mysql-proxy-build:
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name: "Build MySQL Proxy"
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runs-on: ubuntu-latest
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steps:
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- name: "Setup: Setup QEMU"
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uses: docker/setup-qemu-action@v2
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- name: "Setup: Expose GitHub Runtime"
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uses: crazy-max/ghaction-github-runtime@v3
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- name: "Setup: Setup Docker Buildx"
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uses: docker/setup-buildx-action@v2
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- name: "Setup: Login to Docker Hub"
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if: ${{ !env.ACT }}
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uses: docker/login-action@v2
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with:
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username: ${{ secrets.DOCKER_HUB_USERNAME }}
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password: ${{ secrets.DOCKER_HUB_PASSWORD }}
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- name: "Setup: Login to GHCR"
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uses: docker/login-action@v2
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with:
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registry: ghcr.io
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username: ${{ secrets.GHCR_USERNAME }}
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password: ${{ secrets.GHCR_PASSWORD }}
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- name: "Setup: Checkout Source"
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uses: actions/checkout@v4
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with:
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sparse-checkout: |
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mysql-proxy
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- name: "Build: Build & Push Image"
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uses: docker/build-push-action@v5
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with:
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context: mysql-proxy
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target: mysql-proxy
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platforms: ${{ !env.ACT && 'linux/amd64,linux/arm64' || 'linux/amd64' }}
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pull: true
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push: true
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tags: |
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${{ !env.ACT && 'benzine/mysql-proxy:latest' || '' }}
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${{ !env.ACT && 'ghcr.io/benzine-framework/mysql-proxy:latest' || 'ghcr.io/benzine-framework/mysql-proxy:devel' }}
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cache-from: ${{ !env.ACT && 'type=gha' || 'type=local,src=.cache' }}
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cache-to: ${{ !env.ACT && 'type=gha,mode=max' || 'type=local,dest=.cache' }}
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1
mysql-proxy/.gitignore
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1
mysql-proxy/.gitignore
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.idea
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3
mysql-proxy/.hadolint.yaml
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3
mysql-proxy/.hadolint.yaml
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ignored:
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- DL3005
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- DL3008
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59
mysql-proxy/Dockerfile
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59
mysql-proxy/Dockerfile
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FROM benzine/marshall:latest AS mysql-proxy
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LABEL maintainer="Matthew Baggett <matthew@baggett.me>" \
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org.label-schema.vcs-url="https://github.com/benzine-framework/docker" \
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org.opencontainers.image.source="https://github.com/benzine-framework/docker"
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ENV MYSQL_PROXY_VERSION 0.8.5
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ENV MYSQL_PROXY_TAR_NAME mysql-proxy-$MYSQL_PROXY_VERSION-linux-debian6.0-x86-64bit
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ENV DEBIAN_FRONTEND=noninteractive
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RUN apt-get update && \
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apt-get upgrade -y ca-certificates tzdata && \
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apt-get -y install --no-install-recommends \
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wget \
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mysql-client \
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&& \
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wget https://downloads.mysql.com/archives/get/p/21/file/$MYSQL_PROXY_TAR_NAME.tar.gz && \
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tar -xzvf $MYSQL_PROXY_TAR_NAME.tar.gz && \
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mv $MYSQL_PROXY_TAR_NAME /opt/mysql-proxy && \
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rm $MYSQL_PROXY_TAR_NAME.tar.gz && \
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DEBIAN_FRONTEND=noninteractive apt-get -y remove wget && \
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apt-get autoremove -yqq && \
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apt-get clean && \
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rm -rf /var/lib/apt/lists/ && \
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chown -R root:root /opt/mysql-proxy && \
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printf "#!/bin/bash\n\
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\n\
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exec /opt/mysql-proxy/bin/mysql-proxy \\\\\n\
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--keepalive \\\\\n\
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--log-level=error \\\\\n\
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--plugins=proxy \\\\\n\
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--proxy-address=\${PROXY_DB_HOST}:\${PROXY_DB_PORT} \\\\\n\
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--proxy-backend-addresses=\${REMOTE_DB_HOST}:\${REMOTE_DB_PORT} \\\\\n\
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--proxy-lua-script=/opt/mysql-proxy/conf/main.lua\n\
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" >> /usr/local/bin//entrypoint.sh && \
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chmod u+x /usr/local/bin/entrypoint.sh && \
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ln -s /usr/local/bin/docker-entrypoint.sh /entrypoint.sh # shortcut
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HEALTHCHECK --interval=5s --timeout=3s --start-period=5s --retries=3 \
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CMD mysqladmin ping -h 127.0.0.1 -p 3306 -u root || exit 1
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ENTRYPOINT [ "entrypoint.sh" ]
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COPY main.lua /opt/mysql-proxy/conf/main.lua
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# For another derived image:
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# --help-all
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# --proxy-backend-addresses=mysql:3306
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# --proxy-skip-profiling
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# --proxy-backend-addresses=host:port
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# --proxy-read-only-backend-addresses=host:port
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# --keepalive
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# --admin-username=User
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# --admin-password=Password
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# --log-level=crititcal
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# The log level to use when outputting error messages.
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# Messages with that level (or lower) are output.
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# For example, message level also outputs message with info, warning, and error levels.
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136
mysql-proxy/README.md
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136
mysql-proxy/README.md
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# MySQL Proxy
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# Usage with docker-compose
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without
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```
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version: '2'
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services:
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db:
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image: mysql:8.0.0
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restart: always
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ports:
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- "3307:3306" #for external connection
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volumes:
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- ../mysql-data/db:/var/lib/mysql #mysql-data
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environment:
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MYSQL_ROOT_PASSWORD: password
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MYSQL_DATABASE: dbuser
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MYSQL_USER: dbuser
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MYSQL_PASSWORD: password
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```
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within
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```
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version: '2'
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services:
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mysql:
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image: mysql:8.0.0
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restart: always
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expose:
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- "3306" #for service mysql-proxy
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ports:
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- "3307:3306" #for external connection
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volumes:
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- ../mysql-data/db:/var/lib/mysql #mysql-data
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environment:
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MYSQL_ROOT_PASSWORD: password
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MYSQL_DATABASE: dbuser
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MYSQL_USER: dbuser
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MYSQL_PASSWORD: password
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db:
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image: matthewbaggett/mysql-proxy
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expose:
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- "3306" #for service php
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ports:
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- "3308:3306" #for external connection
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restart: always
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volumes:
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- ../mysql-proxy-conf:/opt/mysql-proxy/conf
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environment:
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PROXY_DB_PORT: 3306
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REMOTE_DB_HOST: mysql
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REMOTE_DB_PORT: 3306
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LUA_SCRIPT: "/opt/mysql-proxy/conf/main.lua"
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depends_on:
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- mysql
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```
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# Query to stdout
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For `docker-compose up` without `-d` (`../mysql-proxy/main.lua`)
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```
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function read_query(packet)
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if string.byte(packet) == proxy.COM_QUERY then
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print(string.sub(packet, 2))
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end
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end
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```
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# Query logging for mysql-proxy
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```
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...
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volumes:
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- ../mysql-proxy-conf:/opt/mysql-proxy/conf
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- ../mysql-proxy-logs:/opt/mysql-proxy/logs
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environment:
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PROXY_DB_PORT: 3306
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REMOTE_DB_HOST: mysql
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REMOTE_DB_PORT: 3306
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LUA_SCRIPT: "/opt/mysql-proxy/conf/log.lua"
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LOG_FILE: "/opt/mysql-proxy/logs/mysql.log"
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...
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```
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`/mysql-proxy-conf/log.lua` https://gist.github.com/simonw/1039751
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```
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local log_file = os.getenv("LOG_FILE")
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local fh = io.open(log_file, "a+")
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function read_query( packet )
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if string.byte(packet) == proxy.COM_QUERY then
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local query = string.sub(packet, 2)
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fh:write( string.format("%s %6d -- %s \n",
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os.date('%Y-%m-%d %H:%M:%S'),
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proxy.connection.server["thread_id"],
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query))
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fh:flush()
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end
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end
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```
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# thanks
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https://hub.docker.com/r/zwxajh/mysql-proxy
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https://hub.docker.com/r/gediminaspuksmys/mysqlproxy/
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# logrotate
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The image can be expand with `logrotate`
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Config file `/etc/logrotate.d/mysql-proxy` (approximate)
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```
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/opt/mysql-proxy/mysql.log {
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weekly
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missingok
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rotate 35600
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compress
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delaycompress
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notifempty
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create 666 root root
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postrotate
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/etc/init.d/mysql-proxy reload > /dev/null
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endscript
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}
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```
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# troubleshooting
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If you can't create the chain `mysql` -> `mysql-proxy` -> `external client liten 0.0.0.0:3308`
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check extends ports on the `mysql` service and/or add `expose` directly
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```
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expose:
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- "3306" #for service mysql-proxy
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```
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> note: Log send to file with delay (buffering mechanism). You can restart the container for get the log immediately.
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5
mysql-proxy/main.lua
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5
mysql-proxy/main.lua
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function read_query(packet)
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-- if string.byte(packet) == proxy.COM_QUERY then
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-- print(string.sub(packet, 2))
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-- end
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end
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