Comments (8)
ttinkr
commented on June 17, 2024
Same here.
@carpenike Can you tell me how to delete a single container out of the pod? Did you issue a kill 1 inside the container or is there a kubectl delete POD CONTAINER I am not aware of? Thanks!
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carpenike
commented on June 17, 2024
@ttinkr I haven’t done that before. In my case I deleted the entire pod.
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aescanero
commented on June 17, 2024
What have been the steps you have taken?
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vlitvin
commented on June 17, 2024
Same here.
In my case after restarting pod when powerdns-powerdnsadmin starts it deletes tables in database.
...
===> DB management
---> Running DB Migration
* Tip: There are .env files present. Do "pip install python-dotenv" to use them.
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.autogenerate.compare] Detected removed table 'supermasters'
INFO [alembic.autogenerate.compare] Detected removed index 'name_index' on 'domains'
INFO [alembic.autogenerate.compare] Detected removed table 'domains'
INFO [alembic.autogenerate.compare] Detected removed index 'comments_name_type_idx' on 'comments'
INFO [alembic.autogenerate.compare] Detected removed index 'comments_order_idx' on 'comments'
INFO [alembic.autogenerate.compare] Detected removed table 'comments'
INFO [alembic.autogenerate.compare] Detected removed index 'domainidindex' on 'cryptokeys'
INFO [alembic.autogenerate.compare] Detected removed table 'cryptokeys'
INFO [alembic.autogenerate.compare] Detected removed index 'nametype_index' on 'records'
INFO [alembic.autogenerate.compare] Detected removed table 'records'
INFO [alembic.autogenerate.compare] Detected removed index 'namealgoindex' on 'tsigkeys'
INFO [alembic.autogenerate.compare] Detected removed table 'tsigkeys'
INFO [alembic.autogenerate.compare] Detected removed index 'domainmetadata_idx' on 'domainmetadata'
INFO [alembic.autogenerate.compare] Detected removed table 'domainmetadata'
...
Steps to reproduce:
- Install helm chart
- delete powerdns pod, or exec
kill 1inpowerdns-powerdnsadmincontainer - get logs from
powerdns-powerdnsadmincontainer
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aescanero
commented on June 17, 2024
Testing:
$ helm repo add aecharts https://raw.githubusercontent.com/aescanero/helm-charts/master/
$ helm repo update
$ helm install powerdns-release --set domain=disasterproject.com aecharts/powerdns
$ kubectl -n external-dns get pv
pvc-55ad55ca-4d00-48f5-aa71-65a8abec49bd 1Gi RWO Delete Bound default/pvc-powerdns-release-mariadb gp2 3m48s
$ kubectl exec -it powerdns-release-56cbd58bbd-fct92 -c powerdns-powerdnsadmin -- kill 1
But you can't kill the container with this, you need to close all the gunicorns threads, now testing with "delete pod":
$ kubectl delete pod powerdns-release-56cbd58bbd-fct92
pod "powerdns-release-56cbd58bbd-fct92" deleted
$ kubectl logs powerdns-release-56cbd58bbd-9w7hb -c powerdns-powerdnsadmin
===> Waiting for 127.0.0.1 MySQL service
127.0.0.1 (127.0.0.1:3306) open
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
===> Update PDNS API connection info
Connection ok
Connection ok
[2020-07-26 18:56:09 +0000] [14] [INFO] Starting gunicorn 20.0.4
[2020-07-26 18:56:09 +0000] [14] [INFO] Listening at: http://0.0.0.0:9191 (14)
[2020-07-26 18:56:09 +0000] [14] [INFO] Using worker: sync
[2020-07-26 18:56:09 +0000] [16] [INFO] Booting worker with pid: 16
[2020-07-26 18:56:09 +0000] [17] [INFO] Booting worker with pid: 17
[2020-07-26 18:56:09 +0000] [18] [INFO] Booting worker with pid: 18
[2020-07-26 18:56:09 +0000] [19] [INFO] Booting worker with pid: 19
I can't reproduce it, but I'll check the entrypoint script.
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vlitvin
commented on June 17, 2024
Seems somehow may be related to k8s version or storage provider.
Got different results for two k8s instances:
- k3s(v1.18.2+k3s1) with out-of-the-box storage
Do not survive pod deletion. - kubespray(release-2.13) - kubernetes v1.17.8 - with ceph pv
Works fine.
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aescanero
commented on June 17, 2024
k3s use by default host storage. I'm using NFS storage without problems.
Closing this bug.
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vlitvin
commented on June 17, 2024
Yes, but how exactly storage affects booting up?
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