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LXC: improved UX when working with a bunch of containers

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Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser 2020-02-27 19:13:03 +01:00
parent af6acd3417
commit 37c135f2ce
5 changed files with 122 additions and 55 deletions
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32
utils/lib.sh
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@ -117,9 +117,9 @@ rst_title() {
# usage: rst_title <header-text> [part|chapter|section]
case ${2-chapter} in
part) printf "\n${_BGreen}${1//?/=}\n${_BCyan}${1}${_BGreen}\n${1//?/=}${_creset}\n";;
chapter) printf "\n${_BCyan}${1}\n${_BGreen}${1//?/=}${_creset}\n";;
section) printf "\n${_BCyan}${1}\n${_BGreen}${1//?/-}${_creset}\n";;
part) printf "\n${_BGreen}${1//?/=}${_creset}\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n";;
chapter) printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n";;
section) printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/-}${_creset}\n";;
*)
err_msg "invalid argument '${2}' in line $(caller)"
return 42
@ -238,7 +238,7 @@ prefix_stdout () {
local prefix="${_BYellow}-->|${_creset}"
if [[ -n $1 ]] ; then prefix="${_BYellow}$1${_creset}"; fi
if [[ -n $1 ]] ; then prefix="$1"; fi
# shellcheck disable=SC2162
(while IFS= read line; do
@ -294,7 +294,8 @@ backup_file() {
# usage: backup_file /path/to/file.foo
local stamp=$(date +"_%Y%m%d_%H%M%S")
local stamp
stamp=$(date +"_%Y%m%d_%H%M%S")
info_msg "create backup: ${1}${stamp}"
cp -a "${1}" "${1}${stamp}"
}
@ -503,7 +504,7 @@ install_go() {
# usage: install_go "${GO_PKG_URL}" "${GO_TAR}" "${SERVICE_USER}"
local _svcpr=" |${3}| "
local _svcpr=" ${_Yellow}|${3}|${_creset} "
rst_title "Install Go in user's HOME" section
@ -1034,17 +1035,32 @@ git_clone() {
if [[ -d "${dest}" ]] ; then
info_msg "already cloned: $dest"
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " |$user| "
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " ${_Yellow}|$user|${_creset} "
cd "${dest}"
git checkout -m -B "$branch" --track "$remote/$branch"
git pull --all
EOF
else
info_msg "clone into: $dest"
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " |$user| "
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " ${_Yellow}|$user|${_creset} "
mkdir -p "$(dirname "$dest")"
cd "$(dirname "$dest")"
git clone --branch "$branch" --origin "$remote" "$url" "$(basename "$dest")"
EOF
fi
}
# containers
# ----------
is_container() {
sudo_or_exit
# usage: is_container && echo "process running inside a LXC container"
# is_container || echo "process is not running inside a LXC container"
#
# hint: Reads init process environment, therefore root access is required!
# to be safe, take a look at the environment of process 1 (/sbin/init)
grep -qa 'container=lxc' /proc/1/environ
}