superseb

RKE2 commands

• Updated on May 29 to accommodate etcd container not having /bin/sh available anymore.

Install

curl -sL https://get.rke2.io | sh
systemctl daemon-reload
systemctl start rke2-server

jclosure

# base on this args processing model

 for a in "$@"; do
     case $a in
         --path | -P)
             shift 1
             EMACS="$1"
             shift 1
             ;;
         --toolbars | -B)

r0mdau

# find the kube node of the running pod, appear next to hostIP, and note containerID hash
kubectl get pod mypod -o json
# -> save hostIP
# -> save containerID

# connect to the node and find the pods unique network interface index inside it's container
docker exec containerID /bin/bash -c 'cat /sys/class/net/eth0/iflink'
# -> returns index

# locate the interface of the node

superseb

Recover cluster.rkestate file from controlplane node

RKE

Run on controlplane node, uses any found hyperkube image

k8s 1.19 and higher

docker run --rm --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro --entrypoint bash $(docker inspect $(docker images -q --filter=label=org.opencontainers.image.source=https://github.com/rancher/hyperkube.git) --format='{{index .RepoTags 0}}' | tail -1) -c 'kubectl --kubeconfig /etc/kubernetes/ssl/kubecfg-kube-node.yaml -n kube-system get configmap full-cluster-state -o json | jq -r .data.\"full-cluster-state\" | jq -r .' > cluster.rkestate

jsdevtom

export const ws = webSocket<WebsocketMessage>(`wss://${location.hostname}:${location.protocol === 'https:' ? 443 : 80}/ws/`);

export const wsObserver = ws
  .pipe(
    retryWhen(errors =>
      errors.pipe(
        delay(1000)
      )
    )
  );

janeczku

Steps to change the URL of Rancher installation and switch from a self-signed certificate to a certificate signed by recognized CA.

1. Change the Rancher server-url setting to the new URL:
   • Navigate to https://<old_rancher_hostname>/g/settings/advanced
   • Edit server-url to https://<new_rancher_hostname>
2. Clear the private CA certificate for the old certificate
   • Navigate to https://<old_rancher_hostname>/g/settings/advanced
   • Next to cacerts click context menu -> View in API
   • Click Edit
   • Clear the content of the value field

jgreat

#!/bin/sh
IMAGES=`cat rancher-images.txt`
for IMAGE in $IMAGES; do
until docker inspect $IMAGE > /dev/null 2>&1; do
    docker pull $IMAGE
done
docker tag $IMAGE jgreat-test-airgap-registry.rancher.space/$IMAGE
docker push jgreat-test-airgap-registry.rancher.space/$IMAGE
done

fliedonion

Summary	How to control (or Understand) your GIST page's files list order.
Notice	not official documentation.

placek

# openssl version
openssl version

# openssl commands
openssl list-standard-commands
# ca - create certificate authorities
# dgst - compute hash functions
# enc - encrypt/decrypt using secret key algorithms (it is possible to generate using a password or directly a secret key stored in a file)
# genrsa - generate a pair of public/private key for the RSA algorithm
# password - generation of “hashed passwords”

simlegate

  error_page 400 404 405 =200 @40*_json;

  location @40*_json {
    default_type application/json;
    return 200 '{"code":"1", "message": "Not Found"}';
  }

  error_page 500 502 503 504 =200 @50*_json;

  location @50*_json {