docker

Some customizable Dockerfile scripts

Global customization

• [Image]/[Tag]/root/

Put build time customization file here will copy to container root ('/')

• [Image]/[Tag]/custom/

Put run time customization file here will copy to container root ('/')

Custom start script

• /start-pre.sh

You can put custom start script in [Image]/[Tag]/root/ or [Image]/[Tag]/custom/

• /start.sh

You can put custom start script in [Image]/[Tag]/root/ or [Image]/[Tag]/custom/

Build images

Build images on your local docker host.

sudo ./build.sh

Supported images

./build.sh -h

Run application example

docker run -i -t -d -p 80:80 tsaikd/nginx

docker run -i -t -d -p 8080:8080 tsaikd/tomcat:7

docker run -i -t -d -p 8080:8080 -v /data/webapps:/opt/docker/tsaikd/tomcat-7/custom/var/lib/tomcat7/webapps tsaikd/tomcat:7

docker run -i -t -d -p 8983:8983 -v /data/solr:/data/solr tsaikd/solr:4.6.0

More customization

• config.sh (see config.sh.sample for more detail)

Image structure

• Image name (ubuntu)
  • Tag name (stable)
    • Dockerfile (Dockerfile)
      • DOCKER_BASE will be replaced with DOCKER_BASE variable in config.sh
      • Put add build data to DOCKER_SRC in image file
    • Build image script (build.sh)
    • Default start CMD (start.sh)
    • Default test CMD (test.sh)
    • Download file list (download)
    • SHA1 hash checksum file (sha1sum)
    • Build time custom root filesystem (root)
    • Run time custom root filesystem (custom)
    • Before build image script, usually no need (build-pre.sh)
    • After build image script, usually no need (build-post.sh)
    • Before start CMD, usually no need (start-pre.sh)
    • After start CMD, usually no need (start-post.sh)
    • Before test CMD, usually no need (test-pre.sh)
    • After test CMD, usually no need (test-post.sh)
    • Final build image script, auto generate (build-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • build-pre.sh
        • build.sh
        • build-post.sh
    • Final start CMD, auto generate (start-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • start-pre.sh
        • parent dockers start.sh
        • start.sh
        • start-post.sh
    • Final test CMD, auto generate (test-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • test-pre.sh
        • parent dockers test.sh
        • test.sh
        • test-post.sh
  • Tag name suffix -dev (stable-dev)
    • Final build image script, auto generate (build-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • build-pre.sh
        • ubuntu/stable-dev/build.sh
        • build.sh
        • build-post.sh
    • Final start CMD, auto generate (start-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • start-pre.sh
        • ubuntu/stable-dev/start.sh
        • parent dockers start.sh
        • start.sh
        • start-post.sh
    • Final test CMD, auto generate (test-all.sh)
      • Concat list
        • config.sh.sample
        • config.sh
        • test-pre.sh
        • ubuntu/stable-dev/test.sh
        • parent dockers test.sh
        • test.sh
        • test-post.sh

Config loading order

• ./config.sh.sample
• ./config.sh
• ./Image/config.sh
• ./Image/Tag/config.sh
• ./Image/Tag/root/config.sh
• ./Image/Tag/custom/config.sh
  • This config can change at run time, others are generated at build time

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Customization example

• I do not want the tomcat unpack wars in webapps.
  • write a script /docker-data/tomcat-7/custom/start-pre.sh

   sed -i 's/unpackWARs="true"/unpackWARs="false"/' /etc/tomcat7/server.xml
  

  • run docker, and mount into /opt/docker/tsaikd/tomcat-7/custom/start-pre.sh

   docker run -i -t -d -p 8080 -v /docker-data/tomcat-7/custom:/opt/docker/tsaikd/tomcat-7/custom tsaikd/tomcat:7