mirror of
https://github.com/YunoHost/package_check.git
synced 2024-09-03 20:06:20 +02:00
126 lines
2.9 KiB
Bash
126 lines
2.9 KiB
Bash
#!/bin/bash
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#=================================================
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# LXD HELPERS
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#=================================================
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ynh_lxc_stop () {
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local container_to_stop=$1
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# (We also use timeout 30 in front of the command because sometime lxc
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# commands can hang forever despite the --timeout >_>...)
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timeout 30 lxc stop --timeout 15 $container_to_stop 2>/dev/null
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# If the command times out, then add the option --force
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if [ $? -eq 124 ]; then
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timeout 30 lxc stop --timeout 15 $container_to_stop --force 2>/dev/null
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fi
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}
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_ynh_lxc_start_and_wait () {
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restart_container()
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{
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ynh_lxc_stop $1
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lxc start "$1"
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}
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# Try to start the container 3 times.
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local max_try=3
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local i=0
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while [ $i -lt $max_try ]
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do
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i=$(( i +1 ))
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local failstart=0
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# Wait for container to start, we are using systemd to check this,
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# for the sake of brevity.
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for j in $(seq 1 10); do
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if lxc exec "$1" -- systemctl isolate multi-user.target >/dev/null 2>/dev/null; then
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break
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fi
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if [ "$j" == "10" ]; then
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log_debug 'Failed to start the container ... restarting ...'
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failstart=1
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restart_container "$1"
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fi
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sleep 1s
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done
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# Wait for container to access the internet
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for j in $(seq 1 10); do
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if lxc exec "$1" -- curl -s http://wikipedia.org > /dev/null 2>/dev/null; then
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break
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fi
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if [ "$j" == "10" ]; then
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log_debug 'Failed to access the internet ... restarting'
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failstart=1
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restart_container "$1"
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fi
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sleep 1s
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done
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# Has started and has access to the internet
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if [ $failstart -eq 0 ]
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then
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break
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fi
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# Fail if the container failed to start
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if [ $i -eq $max_try ] && [ $failstart -eq 1 ]
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then
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log_error "The container miserably failed to start or to connect to the internet"
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lxc info --show-log $1
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return 1
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fi
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done
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LXC_IP=$(lxc exec $1 -- hostname -I | cut -d' ' -f1 | grep -E -o "\<[0-9.]{8,}\>")
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}
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ynh_lxc_snapshot_exists () {
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local snapname=$1
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lxc list --format json \
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| jq -e --arg LXC_NAME $LXC_NAME --arg snapname $snapname \
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'.[] | select(.name==$LXC_NAME) | .snapshots[] | select(.name==$snapname)' \
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>/dev/null
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}
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ynh_lxc_snapshot_load () {
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local snapname=$1
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log_debug "Loading snapshot $snapname ..."
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# Remove swap files before restoring the snapshot.
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CLEAN_SWAPFILES
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ynh_lxc_stop $LXC_NAME
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lxc restore $LXC_NAME $snapname
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lxc start $LXC_NAME
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_ynh_lxc_start_and_wait $LXC_NAME
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}
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ynh_lxc_reset () {
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# If the container exists
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if lxc info $LXC_NAME >/dev/null 2>/dev/null; then
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# Remove swap files before deletting the continer
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CLEAN_SWAPFILES
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fi
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ynh_lxc_stop $LXC_NAME
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if lxc info $LXC_NAME >/dev/null 2>/dev/null; then
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local current_storage=$(lxc list $LXC_NAME --format json --columns b | jq '.[].expanded_devices.root.pool')
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swapoff "$(lxc storage get $current_storage source)/containers/$LXC_NAME/rootfs/swap" 2>/dev/null
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fi
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lxc delete $LXC_NAME --force 2>/dev/null
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}
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