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Michael Wiland wilandm

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@kaichao
kaichao / log-http-headers.md
Last active April 29, 2025 03:26
nginx: Log complete request/response with all headers

1. switch nginx image to openresty/openresty

2. add the following to server/location (/etc/nginx/conf.d/default.conf)

   set $req_header "";
   set $resp_header "";
   header_filter_by_lua_block{ 
      local h = ngx.req.get_headers();
      for k, v in pairs(h) do
         ngx.var.req_header = ngx.var.req_header .. k.."="..v.." ";
@superseb
superseb / intermediate-certificate-rancher.md
Last active October 26, 2020 14:15
Generate CA, intermediate CA and server certificate with DNS alt names using Terraform in Docker and launch Rancher

Generate CA, intermediate CA and server certificate with DNS alt names using Terraform in Docker and launch Rancher

Generate CA, intermediate CA and server certificate

docker run --rm -v $PWD/testcerts:/tmp/certs/files -e TF_VAR_ip_addresses='["127.0.0.1"]' -e TF_VAR_dns_names='["yolo.seb.local"]' superseb/intermediate

Run Rancher

@superseb
superseb / restore-rkestate-file.md
Last active April 3, 2025 14:31
Recover cluster.rkestate file from controlplane node

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
@ahmedsajid
ahmedsajid / README.md
Last active April 16, 2020 15:37
Ansible version switcher

Ansible version switcher

Script which installs variety of Ansible versions and sets them up using virtualenv.

Loading ansible

source ./ansible_version 2.7.0

Mostly based on original script by @gbolo

@squarism
squarism / iterm2.md
Last active December 16, 2025 11:18
An iTerm2 Cheatsheet

In the below keyboard shortcuts, I use the capital letters for reading clarity but this does not imply shift, if shift is needed, I will say shift. So ⌘ + D does not mean hold shift. ⌘ + Shift + D does of course.

Tabs and Windows

Function Shortcut
New Tab ⌘ + T
Close Tab or Window ⌘ + W (same as many mac apps)
Go to Tab ⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction ⌘ + Option + Arrow Key
@ssstonebraker
ssstonebraker / sed cheatsheet
Created August 2, 2013 14:06 — forked from un33k/sed cheatsheet
Sed Cheatsheet
FILE SPACING:
# double space a file
sed G
# double space a file which already has blank lines in it. Output file
# should contain no more than one blank line between lines of text.
sed '/^$/d;G'