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Convert an existing docker container into a "docker run" command line
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# Convert an existing docker container into a "docker run" command line. | |
# | |
# This is useful when trying to debug containers that have been created | |
# by orchestration tools. | |
# | |
# Install jq: stedolan.github.io/jq/ | |
# Improved version that handles ports, volumes, binds | |
function format_run() { | |
cid=$1 | |
json=$(docker inspect $cid 2>&1) | |
# parse container info | |
entrypoint=$( echo $json | jq -j '.[0].Config.Entrypoint | join(" ")' ) | |
envvars=$( echo $json | jq -j '(.[0].Config.Env | [" -e " + .[]] | join(""))' ) | |
image=$( echo $json | jq -j .[0].Image ) | |
cmd=$( echo $json | jq -j '.[0].Config.Cmd? | join(" ")' ) | |
ports=$( echo $json | jq -j '(.[0].HostConfig.PortBindings?|.[][]|["-p " + .HostIp + ":" + .HostPort]|join(""))' ) | |
vols=$( echo $json | jq -j '(.[0].HostConfig.Binds?|["-v " + .[]?]|join(""))' ) | |
pub=$( echo $json | jq -j 'if .[0].HostConfig.PublishAllPorts == false then "-P" else "" end') | |
echo "docker run --entrypoint $entrypoint $envvars $ports $vols $pub $image $cmd" | |
} |
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Added support for volumes, ports, published ports