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Worker node liveness probe #7

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merged 2 commits into from
Jan 30, 2019
Merged

Worker node liveness probe #7

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0abc282
initial build
cgetzen Jan 28, 2019
3b84d58
fqpn
cgetzen Jan 30, 2019
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7 changes: 4 additions & 3 deletions deploy/tmate-init-cm.yaml
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Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
apiVersion: v1
data:
init.sh: |
MESSAGE="Look's like you've left your host shell. Let's see if we can get you back to $DEST_POD."
echo "\n\n\n" | ssh-keygen -t rsa -N "" > /dev/null
tmate -S /tmp/tmate.sock new-session -d 2> /dev/null
tmate -S /tmp/tmate.sock send-keys "kubectl exec -n $DEST_NAMESPACE -it $DEST_POD /bin/sh" ENTER
tmate -S /tmp/tmate.sock send-keys "while :; do kubectl exec -n \$DEST_NAMESPACE -it \$DEST_POD /bin/sh && echo \"$MESSAGE\"; done" ENTER
tmate -S /tmp/tmate.sock wait tmate-ready
kubectl annotate pod $(cat /etc/podinfo/name) ssh=$(tmate -S /tmp/tmate.sock display -p '#{tmate_web}')
kubectl annotate pod -n $DEST_NAMESPACE $DEST_POD ssh.out=$(tmate -S /tmp/tmate.sock display -p '#{tmate_web}')
kubectl annotate pod $(cat /etc/podinfo/name) ssh="$(tmate -S /tmp/tmate.sock display -p '#{tmate_web}')" --overwrite
kubectl annotate pod -n $DEST_NAMESPACE $DEST_POD ssh.out="$(tmate -S /tmp/tmate.sock display -p '#{tmate_web}')" --overwrite
sleep 9999999
kind: ConfigMap
metadata:
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8 changes: 8 additions & 0 deletions pkg/controller/sshjob/sshjob_controller.go
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Expand Up @@ -251,6 +251,14 @@ func newPodForCR(cr *corev1.Pod) *corev1.Pod {
MountPath: "/etc/podinfo",
},
},
LivenessProbe: &corev1.Probe{
Handler: corev1.Handler{
Exec: &corev1.ExecAction{
Command: []string{"/usr/bin/tmate", "-S", "/tmp/tmate.sock", "wait", "tmate-ready"},
},
},
InitialDelaySeconds: 10,
},
Env: []corev1.EnvVar{
{
Name: "DEST_POD",
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