Rancher with docker single node

Akito · March 1, 2022, 11:49am

Did you already check out the basics?

github.com/rancher/rancher

New cluster stuck in provisioning state

opened 01:42PM - 30 Oct 20 UTC

closed 09:55AM - 15 Dec 20 UTC

rmahajan1234

status/more-info

Hi I did search on this forum but could not find a working solution. Ranc…her version: 2.4.8 HA Cluster type: Custom hosted on AWS, Docker version: 1.13.1 Kubectl version: Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.2", GitCommit:"f5743093fd1c663cb0cbc89748f730662345d44d", GitTreeState:"clean", BuildDate:"2020-09-16T13:41:02Z", GoVersion:"go1.15", Compiler:"gc", Platform:"linux/amd64"} I deployed Rancher with self certificates with a private CA option. The Rancher GUI came up and when I try to create a new cluster, it is stuck in provisioning state with an error ‘check etcd logs’. The etcd logs says: tls: failed to verify client’s certificate: x509: certificate signed by unknown authority (possibly because of “crypto/rsa: verification error” while trying to verify candidate authority certificate “kube-ca”)", ServerName “” Steps to reproduce: cluster.yml: cluster_name: Ram-Kube ssh_key_path: /home/ec2-user/.ssh/id_rsa nodes: address: 10.0.9.205 internal_address: 10.0.9.205 user: ec2-user role: [controlplane,worker,etcd] address: 10.0.9.197 internal_address: 10.0.9.197 user: ec2-user role: [worker] address: 10.0.10.177 internal_address: 10.0.10.177 user: ec2-user role: [worker] services: etcd: snapshot: true creation: 6h retention: 24h network: plugin: weave ingress: provider: nginx options: use-forwarded-headers: ‘true’ rke up --config ./cluster.yml kubectl create namespace cattle-system kubectl -n cattle-system create secret tls tls-rancher-ingress --cert=tls.crt --key=tls.key kubectl -n cattle-system create secret generic tls-ca --from-file=cacerts.pem=./cacerts.pem kubectl -n cattle-system create secret generic tls-ca-additional --from-file=ca-additional.pem=./ca-additional.pem helm install rancher rancher-stable/rancher --namespace cattle-system --set hostname=rancher-draco.asc-dev.io --set ingress.tls.source=secret --set privateCA=true --kubeconfig ./kube_config_cluster.yml --set additionalTrustedCAs=true Do you see the incorrect configuration parameter in the steps above? Thanks in advance. Ram

github.com/rancher/rke

x509: certificate signed by unknown authority

opened 04:04AM - 02 Feb 19 UTC

closed 03:25PM - 02 Feb 19 UTC

andymelichar

**RKE version:** rke version v0.1.15 **Docker version: (`docker version`,`doc…ker info` preferred)** ``` Containers: 31 Running: 21 Paused: 0 Stopped: 10 Images: 12 Server Version: 17.03.2-ce Storage Driver: overlay Backing Filesystem: xfs Supports d_type: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 4ab9917febca54791c5f071a9d1f404867857fcc runc version: 54296cf40ad8143b62dbcaa1d90e520a2136ddfe init version: 949e6fa Security Options: seccomp Profile: default Kernel Version: 3.10.0-957.1.3.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 3.701 GiB Name: localhost.localdomain ID: ZNEP:KSYX:5MUB:GFES:MA5R:7445:KZGK:ANTF:2MR6:FUQS:4LOW:3HGR Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false ``` **Operating system and kernel: (`cat /etc/os-release`, `uname -r` preferred)** CentOS Linux release 7.6.1810 (Core) 3.10.0-957.1.3.el7.x86_64 **Type/provider of hosts: (VirtualBox/Bare-metal/AWS/GCE/DO)** vSphere **cluster.yml file:** ``` nodes: - address: 192.168.37.177 user: devops role: [controlplane,worker,etcd] ssh_key_path: "/opt/rancher/devops_rsa" - address: 192.168.37.178 user: devops role: [controlplane,worker,etcd] ssh_key_path: "/opt/rancher/devops_rsa" - address: 192.168.37.179 user: devops role: [controlplane,worker,etcd] ssh_key_path: "/opt/rancher/devops_rsa" services: etcd: snapshot: true creation: 6h retention: 24h ``` **Steps to Reproduce:** 1. Set up nginx load balancer per instructions and default using config at https://rancher.com/docs/rancher/v2.x/en/installation/ha/create-nodes-lb/nginx/ 2. Install HA Rancher on 3 nodes according to https://rancher.com/docs/rancher/2.x/en/installation/ha/ 3. Add tls.key and tls.cert, as well as cacerts.pem using following: ``` kubectl -n cattle-system create secret tls tls-rancher-ingress --cert=tls.crt --key=tls.key kubectl -n cattle-system create secret generic tls-ca --from-file=cacerts.pem ``` 4. Attempt to set up a new cluster with a single node, using a vSphere node template **Results:** Cluster begins to build, VM is provisioned and goes through most of the build, and errors on bringing up the control plane. First error is ``` [controlPlane] Failed to bring up Control Plane: Failed to verify healthcheck: Failed to check https://localhost:6443/healthz for service [kube-apiserver] on host [192.168.37.89]: Get https://localhost:6443/healthz: can not build dialer to c-d2hwt:m-xhr9n, log: I0202 03:54:51.820462 1 storage_rbac.go:276] created rolebinding.rbac.authorization.k8s.io/system:controller:bootstrap-signer in kube-public ``` It then goes back to through trying to provision and throws a different but similar message: ``` [controlPlane] Failed to bring up Control Plane: Failed to verify healthcheck: Failed to check https://localhost:6443/healthz for service [kube-apiserver] on host [192.168.37.89]: Get https://localhost:6443/healthz: can not build dialer to c-d2hwt:m-xhr9n, log: I0202 03:56:35.561803 1 log.go:172] http: TLS handshake error from 192.168.37.89:43581: EOF ``` `docker logs rancher/rancher-agent` repeatedly show ``` time="2019-02-02T03:53:14Z" level=info msg="Connecting to wss://rancher.<mydomainname>.com/v3/connect with token mc6vjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxmspst2jfs" time="2019-02-02T03:53:14Z" level=info msg="Connecting to proxy" url="wss://rancher.<mydomainname>.com/v3/connect" time="2019-02-02T03:53:14Z" level=error msg="Failed to connect to proxy" error="x509: certificate signed by unknown authority" time="2019-02-02T03:53:14Z" level=error msg="Failed to connect to proxy" error="x509: certificate signed by unknown authority" ``` **Notes:** - I am using a GeoTrust cert with a wildcard domain in the SAN. I've used this cert for many other services and have had no issues. - I have tried adding the intermediate cert immediately after my regular certificate, it makes no difference. - Since this is a trusted cert from a major CA, also tried without adding the CA cert, made no difference - Someone with a similar issue said they fixed it by installing cert manager through helm, I tried that as well and no luck - Also strangely, if I go to the Global view into settings, and click "Show cacerts" it simply displays `<none>` - but if I do `kubectl -n cattle-system get secrets` I see the CA cert I added early is indeed there, and if I download the yaml for the secret I see the base64 encoded data for the cert - I set up a single node install (no load balancer) using a different certificate against the same vSphere cluster and I was able to provision a node just fine

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Rancher with docker single node

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