Questions tagged [kubernetes-container]
33 questions
28
votes
3 answers
Why do we need a port/containerPort in a Kuberntes deployment/container definition?
When I define e.g. a deployment in Kubernetes there is a section with a list of containers and each of them contains an array of ports, e.g.:
apiVersion: apps/v1
kind: Deployment
spec:
template:
spec:
containers:
- name: my-nginx
…
Ilya Chernomordik
- 27,817
- 27
- 121
- 207
6
votes
3 answers
Can we have same kind of multiple containers in a Pod in Kubernetes?
For instance can I have following yaml to produce a pod with multiple containers:
apiVersion: v1
kind: Pod
metadata:
name: lampapp
labels:
app: app
spec:
containers:
- name: lampdb
image: mysql_test
- name: app
image:…
Madhurima Mishra
- 1,063
- 3
- 14
- 27
4
votes
2 answers
Kubernetes command and args in YAML file
What is the difference between the below three declarations in a Pod YAML file:
containers:
name: busybox
image: busybox
args:
-sleep
-"1000"
containers:
name: busybox
image: busybox
command: ["/bin/sh", "-c", "sleep…
PS-Atl
- 51
- 1
- 3
3
votes
3 answers
Increase startup threshold for k8s container in v1.12
Following the documentation here, I could set the threshold for container startup like so:
startupProbe:
httpGet:
path: /healthz
port: liveness-port
failureThreshold: 30
periodSeconds: 10
Unfortunately, it seems like…
Kludge
- 2,653
- 4
- 20
- 42
3
votes
3 answers
How to create multi container pod from without yaml config of pod or deployment
Trying to figure out how do I create multicontainer pod from terminal with kubectl without yaml config of any resource
tried kubectl run --image=redis --image=nginx but second --image just overrides the first one .. :)
Chetanya Chopra
- 87
- 2
- 7
2
votes
1 answer
How to deploy a microservice ( possible multiple instances) dependent on database in the same kubernetes cluster?
I wanna run a microservice which use DB. DB need to deploy in the same kubernetes cluster as well using PVC/PV. What is the kubernetes service name/command to use to implement such logic:
Deploy the DB instance
If 1 is successful, then deploy the…
J.J. Beam
- 2,612
- 2
- 26
- 55
2
votes
1 answer
Is there a way to automatically restart a pod deployment if a container is unhealthy
My kubernetes cluster has a pod deployment definition to have 10 pod copies. I ran into an issue where a pod instance's container will go into an unrecoverable state where the only mitigation I found is to restart the pod deployment through the…
HDev
- 29
- 3
- 3
2
votes
1 answer
Is it possible to add a new Container once Pod is created?
Suppose I have created a Pod having 1 container, now I want to add a second container to it, how can I do that?
pjj
- 2,015
- 1
- 17
- 42
2
votes
2 answers
How to keep redis database pod running in kubernetes
I created a pod which serve redis database and i want to leave it running when complete. Containers are meant to run to completion. Do i need to create and infinity loop which never ends ?
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
…
O.Man
- 585
- 2
- 9
- 20
2
votes
1 answer
Do you need to define ports.containerPort in K8s if Dockerfile describes as EXPOSE
I have a legacy Deployment.yaml that is used by Helm and works fine so far.
containers:
ports:
- containerPort: 3000
This part here was wrongly indended before. So the ports part of it wasn't active or used in k8s as far as…
xetra11
- 7,671
- 14
- 84
- 159
2
votes
2 answers
Can we use single Volume mount in Pod for more than a single container?
In a pod can we have a single volume for two different containers.
Kishan Jr
- 39
- 8
2
votes
1 answer
How to set Kubernetes image pull retry limit
Kubernetes ends up with long running pods when an image specified for a container is purged from an image repository. These deployments are created by a continuous integration system and sometimes pipelines are run or rerun when images have been…
bitrock
- 1,254
- 1
- 12
- 17
2
votes
1 answer
kubernetes - volume mapping via command
I need to map a volume while starting the container, I am able to do it so with yaml file.
Is there an way volume mapping can be done via command line without using yaml file? just like
-v option in docker?
Dhananjay
- 354
- 1
- 2
- 15
1
vote
0 answers
How to mark Pod as ready if one of the containers has completed
I have a Pod that has two regular (i.e. not Init) Containers. One of them is meant to be used as a "job", i.e. it should run a script and then exit while the other container should keep running. The problem is that as soon as the "job" container is…
Mike
- 842
- 1
- 9
- 31
1
vote
1 answer
Unable to exec command into kubernetes pod
Python version 3.8.10
Kubernetes version 23.3.0
I'm trying to run a command into a specific pod in kubernetes using python. I've tried to reduce the code as much as I could, so I'm running this.
from kubernetes import client,…
Xaruman
- 99
- 1
- 12