How can I run a specific shell with mounted volumes for debugging purposes, and not run it automatically?
What I found best was a cronjob run on the 29th of February that I can trigger manually it would ultimately be run on an unwanted schedule.
Also, I could do it with a kubernetes simple pod template, but I need helm templating.
The best way I found was to run it the 30th of February.
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: shell-job
labels:
app: {{ template "acs.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
spec:
# 30th of February run, will never be run automatically, only when we trigger it
schedule: "0 0 30 2 0"
jobTemplate:
spec:
template:
spec:
containers:
- name: shell-job
image: debian
command: ["sleep", "36000"]
then trigger it with:
kubectl create job --from=cronjob/shell-job shell-job
kubectl exec -it shell-job bash
and to delete:
kubectl delete job/shell-job
Old question but...
On my side, I add a timestamp at the end of the job's name.
Like this, when I upgrade a helm release the old job is deleted and a new one is created.
[...]
+ apiVersion: batch/v1
+ kind: Job
+ metadata:
+ name: "hook-instana-release-marker-1625234380"
[...]
- apiVersion: batch/v1
- kind: Job
- metadata:
- name: "hook-instana-release-marker-1622536496"
[...]