Questions tagged [rancher]
The rancher tag has no usage guidance.
31
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8
views
Where are all these requests made by pods going to in a RKE2 kubernetes cluster?
I'm using tcpdump in my nodes to track all requests/connections made from pods and I noticed there's a lot of entries going to addresses like the ones below. They clearly belong to something in the ...
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1
answer
1k
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Unable to connect to the server: tls: failed to verify certificate: x509: certificate signed by unknown authority
I am facing issue when trying to import k8s cluster in Rancher.
here are the logs of when trying to run the commands:
Commnad:
curl --insecure -sfL https://172.31.91.168/v3/import/...
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0
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45
views
What are the tools that allow Deployment of Docker images?
Let's consider a Continuous Integration & Delivery pipeline that builds and push a Docker image to a Docker registry. I'd like to be able to:
Manually deploy this Docker image, on demand, ...
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49
views
Fail to deploy a kubernetes application with the Rancher
I am trying to deploy a kubenetes application in a on-premise infrastructure, but there is something wrong with the "Deploy", "Service", and "Ingress" configuration files....
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29
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One pod inside a deployment or many deployments with one pod inside?
Is it correct to put multiple pods inside one deployment? As I understand the correct way to do this is to create multiple containers inside a pod which is inside one deployment, but this does not ...
- 1
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1
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129
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Why does the Rancher Security Group use TCP Port 10256?
What does TCP 10256 do and where is to documented. According to the "Rancher AWS EC2 Security Grouplink" it's open. But I don't see any documentation on port 10256 elsewhere.
It's also ...
- 1,554
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1
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1k
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k3s: Eviction manager: attempting to reclaim" resourceName="ephemeral-storage
When I run kubectl get pods -w --namespace kubeapps I see all my pods are pending
NAME READY STATUS RESTARTS AGE
kubeapps-internal-...
- 1,554
9
votes
1
answer
20k
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error: error loading config file "/etc/rancher/k3s/k3s.yaml": open /etc/rancher/k3s/k3s.yaml: permission denied
When I run commands under k3s kubectl, I get
$ k3s kubectl version
WARN[0000] Unable to read /etc/rancher/k3s/k3s.yaml, please start server with --write-kubeconfig-mode to modify kube config ...
- 1,554
1
vote
1
answer
5k
views
"The plain HTTP request was sent to HTTPS port" issue with nginx-ingress in rancher/k8s
I'm running Rancher v2.6.3 and I have a cluster with a Django workload built all on top of AWS. The deployment has a cluster ip port set up, I have an ingress created with a prefix rule pointing at ...
- 141
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1
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2k
views
default backend - 404
I am currently running a small K3S cluster in order to get familiar with K8S.
I am able to set up pods with ordinary LoadBalancers and get it to work without any problem.
However, when I try to get it ...
- 101
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1
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84
views
Apache Camel-k metrics in rancher embedded prometheus
I have a Kubernetes running Rancher 2.4.3. I have the cluster monitoring enabled in rancher, so that exists a Prometheus instance running, so as a Prometheus Operator.
Recently I deployed a Apache ...
- 101
1
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0
answers
48
views
Is traffic routed through Rrancher when Rancher is used to setup a cluster?
I am learning k8n and want to clarify that I am understanding the traffic flow correctly.
I setup Rancher on domain a.com (single node for now) and create a new Cluster (RKE) via it (master, 2 workers)...
- 111
1
vote
1
answer
635
views
how to change a rancher UI installed prometheus server config
I am learning rancher (still) and after deploying the monitoring chart (prom, grafana etc) i need to add more targets to the prometheus config (such as other bare-metal server and some QEMU too), I ...
- 344
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64
views
Configure Eureka or Consul in Rancher
I would like to know how to configure Consul or Eureka using Rancher. I stumbled in the part where I need to enter the key value.
1
vote
2
answers
117
views
Are there arguments against using “imagization" tools in the literature and if so, what are the main ones?
Although I never used an "imagization" tool (for example, Docker) I understand a container as an instantiated (running or stopped) image which in plural are simply put, a server environment and ...
user5176
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1
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55
views
Will data contained withing Persistent Volume survive cluster deletion?
I have a Kubernetes cluster based on 3 hosts managed via Rancher
I've created Persistent Volume on the first host and use it via a claim by a PostgreSQL pod. My app is generating and storing there ...
2
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0
answers
978
views
Rancher Pipeline: How to pass environment variables from one stage to another [closed]
Currently I am trying to move our existing build infrastructure to Rancher with its CICD pipelines.
My main question is: Is it possible to pass environment variables from one stage to another?
Our ...
- 21
2
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1
answer
1k
views
"Error: forwarding ports: Upgrade request required" Error in helm of a kubernetes cluster
I have a kubernetes cluster built using kubespray and imported to Rancher.
The nodes are configured with
CentOS Linux 7 3.10.0-957.12.1.el7.x86_64
Docker version : 18.9.5
Kubelet version : v1.14.1
...
- 121
0
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1
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60
views
Kubernetes multi cloud
I'm exploring doing kubernetes on a multicloud setup the configuration I want is a master connected to nodes in multiple cloud platforms. In my limited research I haven't found many tools to make this ...
- 13
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2
answers
9k
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Kubernetes on k3s can't resolve domains from custom dns server (fritz.box with dnsmasq)
I have a dns server running at 192.168.0.19 for custom domains like .fritz.box. Having a single node cluster on k3s, Rancher was installed using a subdomain server2.fritz.box using this command:
...
- 191
1
vote
1
answer
179
views
Rancher, Load Balancing and own domain
I have a question about rancher. I'm running my rancher on aws. I have created a new cluster with two nodes (workers) and I have deployed my docker images. Now I wanted to add Load Balancer, but I don'...
- 121
2
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1
answer
80
views
What are the two project layouts offered by Rancher on installation?
During login after initial setup, Rancher CLI asks the following:
Do you want to continue connecting (yes/no)? yes
NUMBER CLUSTER NAME PROJECT ID PROJECT NAME ...
- 6,792
3
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answers
101
views
After deployment, one Rancher load balanced RESTful app instance returns 404 while other returns results [closed]
I have setup a CI/CD pipeline which triggers builds, packages, and deploys tasks that execute on Gitlab online whenever a Spring boot RESTful service app is checked in. The three stages and tasks run ...
- 199
2
votes
1
answer
1k
views
Rancher & gitlab-runner - is there a way to get the gitlab-runner to tell Rancher to start the CI test environment instead?
I’ve got an AWS gitlab instance successfully doing CI with gitlab-runners running under vagrant on my local dev machine. I’d like to move the runners off my machine and onto a standalone server...
I’...
- 131
2
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0
answers
45
views
Which volume solutions are the most convenient when building Docker & microservices based application? [closed]
My application consists of few microservices and web (React) frontend. Basically I have auth microservice, application backend service, various data processing services and frontend rendering server. ...
- 121
2
votes
1
answer
89
views
Measure service unavailability during upgrade
I am deploying a microservices - based application using an orchestrator (Rancher specifically).
During the service upgrade (when new images are being pulled and services re-discover one another), ...
- 957
1
vote
1
answer
1k
views
Migrate Rancher host from server to server
I have 4 Rancher servers: one for each environment: dev, sandbox, staging & prod.
3 of them are of an older Rancher 1.4 version (sandbox, staging, prod) & are hosted on OVH hosting, the one ...
- 111
14
votes
2
answers
771
views
How do I automate deployments with Kubernetes?
Assuming I have Kubernetes deployed via Rancher and Jenkins is building new images and pushing them to DockerHub upon check-in of new code to GitHub, how do I automate getting new images deployed?
...
- 141
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1
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29
views
Why do some components vanish from the catalog list if one component has been installed in Rancher?
If one adds a component from the catalog in Rancher and one would like to add another component than the list seems to be reduced. Why do some components vanish from the catalog list if one component ...
- 13.1k
2
votes
1
answer
705
views
Why is the K8s UI not available when rancher is used?
K8s has been created using rancher, but when one would like to access the UI it shows:
Service unavailable
Methods
Method 1
rancher was deployed locally using vagrant
k8s was deployed
click the ui ...
- 13.1k
20
votes
1
answer
899
views
What functional differences are there between kubernetes, rancher and mesos?
What are the main feature differences the popular container orchestration tools kubernetes, rancher, and mesos?
What would lead you to choose one over the other?
- 650