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docker run -d --name test-port -p 8000:8000 busybox sh -c "while true; do echo 'hello world'; done"
for i in {1..100}; do
echo "restart $i"
docker restart test-port
dqminh / Dockerfile
Last active Aug 29, 2015
7600-zombie dockerfiles
View Dockerfile
FROM tianon/dind
RUN apt-get update -y && apt-get install --no-install-recommends -y -q \
curl \
ca-certificates \
RUN mkdir /nodejs && curl | tar xvzf - -C /nodejs --strip-components=1
ENV PATH /nodejs/bin:$PATH
View gist:1de3a3bfcf7d58480c56
# Dockerfile
ENV name value
ENV name2 value2
VOLUME /test1
# normal AST
(env name value)
(env name2 value2)
(volume /test1)
View gist:67912a80278983617c8d
POST /containers/(id)/start HTTP/1.1
Content-Type: application/json
"RestartPolicy": {"Name": "always"}
View gist:d95056237acbbf5e3d37
// test for
func TestRunPipeStdoutSlowStdin(t *testing.T) {
defer deleteAllContainers()
defer deleteImages("fedora")
runCommand(exec.Command(dockerBinary, "pull", "fedora"))
runCmd := exec.Command("bash", "-c",
fmt.Sprintf(`%s run -i fedora tar -cf - /usr/bin | %s run -i fedora tar -tf -`,
dockerBinary, dockerBinary))
View 0001-pass-extra-file-to-child-process-as-status-handler.patch
From 244453b367dd0f005e71f400c698fe29ad070f1b Mon Sep 17 00:00:00 2001
From: "Daniel, Dao Quang Minh" <>
Date: Wed, 8 Oct 2014 10:27:55 -0400
Subject: [PATCH] pass extra file to child process as status handler
instead of using stdout/stderr as the status handler, we pass an extra file to
the child process and write `0\n` or `1\nerror message` to it and close it
after. This allow the child process to handle stdout/stderr as normal.
Docker-DCO-1.1-Signed-off-by: Daniel, Dao Quang Minh <> (github: dqminh)
View gist:a5d9d462a80c42ab052e
Oct 9 07:41:29 action-dev kernel: [48657.051281] type=1400 audit(1412854889.409:135): apparmor="DENIED" operation="signal" profile="docker-default" pid=9733 comm="bash" requested_mask="send" denied_mask="send" signal=term peer="unconfined"
View gist:cfe6c2b5b246410c2998
ADD ./composer.json /app/composer.json
RUN composer install

Builder v2

Current approach

Right now, the builder is very tightly coupled with docker core. The builder has the following roles:

  • process the build context
  • parse Dockerfile into sexp-expressions
  • evaluate individual sexp-expressions which may involves the following job:
    • persist configurations i.e ENV, EXPOSE, VOLUME, etc.
View gist:8238dd1b51a7d7ac2173
root 29602 0.1 0.7 606168 14676 ? Ssl 12:37 0:01 /home/action/bin/docker -d -D --host=unix:///var/run/docker.sock
root 30738 0.1 0.0 3168 324 pts/5 Ss+ 12:56 0:00 \_ sh
root 30813 0.0 0.0 13224 256 ? Ss 12:56 0:00 \_ nsenter-exec --nspid 30738 -- sleep 1000
root 30850 0.5 0.0 3148 72 ? S 12:56 0:00 \_ sleep 1000
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