Created
June 28, 2016 14:38
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Run a process in a docker container with specific uid and gid. Take dropbox for example.
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#!/usr/bin/env sh | |
has_gid () { | |
cut -d: -f1,4 /etc/passwd | grep -q "^${1}:${2}" || return 1 | |
} | |
# example: ensure_user btsync 1000 1000 | |
ensure_user () { | |
local user=$1 | |
local uid=$2 | |
local gid=$3 | |
local group_prefix=${4:-_} | |
{ | |
deluser $user | |
delgroup $user | |
delgroup $group_prefix$user | |
} 2>/dev/null | |
adduser -h / -s /bin/sh -D -u $uid $user | |
has_gid $user $gid || { | |
addgroup -g $gid $group_prefix$user | |
sed -i 's/^\('$user'\(:[^:]\{1,\}\)\{2\}\):[0-9]\{1,\}/\1:'$gid/ /etc/passwd | |
} | |
} | |
ensure_user dropbox $UID $GID | |
chown -R $UID:$GID /.dropbox-dist /Dropbox | |
exec su dropbox -c "exec $*" |
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