mirror of
https://github.com/jpetazzo/container.training.git
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f8629a2689
This allows to manage groups of VMs across multiple infrastructure providers. It also adds support to create groups of VMs on OpenStack. WARNING: the syntax of workshopctl has changed slightly. Check READMEs for details.
88 lines
2.2 KiB
Bash
88 lines
2.2 KiB
Bash
# Abort if any error happens, and show the command that caused the error.
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_ERR() {
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error "Command $BASH_COMMAND failed (exit status: $?)"
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}
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set -eE
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trap _ERR ERR
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die() {
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if [ -n "$1" ]; then
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error "$1"
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fi
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exit 1
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}
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error() {
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>/dev/stderr echo "[$(red ERROR)] $1"
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}
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warning() {
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>/dev/stderr echo "[$(yellow WARNING)] $1"
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}
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info() {
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>/dev/stderr echo "[$(green INFO)] $1"
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}
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# Print a full-width separator.
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# If given an argument, will print it in the middle of that separator.
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# If the argument is longer than the screen width, it will be printed between two separator lines.
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sep() {
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if [ -z "$COLUMNS" ]; then
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COLUMNS=80
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fi
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SEP=$(yes = | tr -d "\n" | head -c $(($COLUMNS - 1)))
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if [ -z "$1" ]; then
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>/dev/stderr echo $SEP
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else
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MSGLEN=$(echo "$1" | wc -c)
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if [ $(($MSGLEN + 4)) -gt $COLUMNS ]; then
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>/dev/stderr echo "$SEP"
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>/dev/stderr echo "$1"
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>/dev/stderr echo "$SEP"
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else
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LEFTLEN=$((($COLUMNS - $MSGLEN - 2) / 2))
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RIGHTLEN=$(($COLUMNS - $MSGLEN - 2 - $LEFTLEN))
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LEFTSEP=$(echo $SEP | head -c $LEFTLEN)
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RIGHTSEP=$(echo $SEP | head -c $RIGHTLEN)
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>/dev/stderr echo "$LEFTSEP $1 $RIGHTSEP"
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fi
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fi
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}
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need_infra() {
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if [ -z "$1" ]; then
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die "Please specify infrastructure file. (e.g.: infra/aws)"
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fi
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if [ ! -f "$1" ]; then
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die "Infrastructure file $1 doesn't exist."
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fi
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. "$1"
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. "lib/infra/$INFRACLASS.sh"
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}
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need_tag() {
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if [ -z "$TAG" ]; then
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die "Please specify a tag or token. To see available tags and tokens, run: $0 list"
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fi
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if [ ! -d "tags/$TAG" ]; then
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die "Tag $TAG not found (directory tags/$TAG does not exist)."
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fi
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for FILE in settings.yaml ips.txt infra.sh; do
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if [ ! -f "tags/$TAG/$FILE" ]; then
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warning "File tags/$TAG/$FILE not found."
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fi
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done
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. "tags/$TAG/infra.sh"
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. "lib/infra/$INFRACLASS.sh"
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}
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need_settings() {
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if [ -z "$1" ]; then
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die "Please specify a settings file. (e.g.: settings/kube101.yaml)"
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fi
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if [ ! -f "$1" ]; then
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die "Settings file $1 doesn't exist."
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fi
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}
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