Let's say an upstream, proxied by nginx, sets a cookie foo=bar in its HTTP response. To use this cookie name as a variable in nginx configuration, use the magic prefix $cookie_ and the variable becomes $cookie_foo. But how did a cookie become a variable? I call it a magic variable. It could also be called an arbitrary variable.
Add a file, 1-wlan0.yaml, to /etc/netplan/ with the following contents,
$ sudo cat << EOF >> /etc/netplan/1-wlan0.yaml network: version: 2 wifis: wlan0: optional: true access-points: NAME_OF_YOUR_ESSID: password: "YOUR_SECRET_WPA_PSK_HERE" dhcp4: true dhcp6: true EOF
Then apply the plan,
$ sudo netplan apply
There are some amazing resources available to learn about Prometheus. This post is a cheat sheet with examples that serve as a quick reference and record of interesting things.
I needed to install qemu-user-static on podman running on macOS to enable
multiarch build of
Docker images. Assuming you already have brew install podman and
podman machine start, how do you install a package?