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fix: Simplify healthcheck

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Kroese 2023-12-15 09:01:19 +01:00 committed by GitHub
parent a4ea89d6e7
commit 2fab3e5897
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1 changed files with 4 additions and 45 deletions
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49
src/check.sh
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@ -1,56 +1,15 @@
#!/usr/bin/env bash
set -Eeuo pipefail
[ ! -f "/run/qemu.pid" ] && echo "QEMU not running yet.." && exit 0
[ -f "/run/qemu.count" ] && echo "QEMU is shutting down.." && exit 1
file="/run/dsm.url"
active="/run/qemu.pid"
shutdown="/run/qemu.count"
url="http://127.0.0.1:2210/read?command=10"
active_msg="QEMU not running yet.."
shutdown_msg="QEMU is shutting down.."
resp_err="Guest returned an invalid response:"
jq_err="Failed to parse response from guest: jq error"
[ ! -f "$active" ] && echo "$active_msg" && exit 0
[ -f "$shutdown" ] && echo "$shutdown_msg" && exit 1
if [ ! -f "$file" ]; then
# Retrieve IP from guest VM for Docker healthcheck
{ json=$(curl -m 20 -sk "$url"); rc=$?; } || :
[ -f "$shutdown" ] && echo "$shutdown_msg" && exit 1
(( rc != 0 )) && echo "Failed to connect to guest: curl error $rc" && exit 1
{ result=$(echo "$json" | jq -r '.status'); rc=$?; } || :
(( rc != 0 )) && echo "$jq_err $rc ( $json )" && exit 1
[[ "$result" == "null" ]] && echo "$resp_err $json" && exit 1
if [[ "$result" != "success" ]] ; then
{ msg=$(echo "$json" | jq -r '.message'); rc=$?; } || :
echo "Guest replied $result: $msg" && exit 1
fi
{ port=$(echo "$json" | jq -r '.data.data.dsm_setting.data.http_port'); rc=$?; } || :
(( rc != 0 )) && echo "$jq_err $rc ( $json )" && exit 1
[[ "$port" == "null" ]] && echo "$resp_err $json" && exit 1
[ -z "$port" ] && echo "Guest has not set a portnumber yet.." && exit 1
{ ip=$(echo "$json" | jq -r '.data.data.ip.data[] | select((.name=="eth0") and has("ip")).ip'); rc=$?; } || :
(( rc != 0 )) && echo "$jq_err $rc ( $json )" && exit 1
[[ "$ip" == "null" ]] && echo "$resp_err $json" && exit 1
[ -z "$ip" ] && echo "Guest has not received an IP yet.." && exit 1
echo "$ip:$port" > $file
fi
[ -f "$shutdown" ] && echo "$shutdown_msg" && exit 1
[ ! -f "$file" ] && echo "DSM has not enabled networking yet.." && exit 1
location=$(cat "$file")
if ! curl -m 20 -ILfSs "http://$location/" > /dev/null; then
[ -f "$shutdown" ] && echo "$shutdown_msg" && exit 1
echo "Failed to reach page at http://$location" && exit 1
fi