Last week we were at Flock 2016 which was held in Krakow, Poland. Awesome event, lots of news, great people, plenty of conversations and fun.

Here is a list of my notes:

So I wanted to setup automatic mounting (read as autofs) with systemd, without using fstab.

Unfortunately, the man page didn’t have any examples so it wasn’t that easy to figure out. Luckily there is an excellent guide at RHCSA course [1].

Tl;dr

It’s really simple to copy your private GPG keys to another machine of yours.

Let’s do public key first:

$ gpg --export --armor KEY | ssh me@my-other-machine 'gpg --import'
gpg: keyring `/home/me/.gnupg/secring.gpg' created
gpg: keyring `/home/me/.gnupg/pubring.gpg' created
gpg: /home/me/.gnupg/trustdb.gpg: trustdb created
gpg: key 4937B925: public key "KEY" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)

It worked! Now the private:

$ gpg --export-secret-key --armor KEY | ssh me@my-other-machine 'gpg --import --allow-secret-key-import'
gpg: key 4937B925: secret key imported
gpg: key 4937B925: "KEY" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
gpg:       secret keys read: 1
gpg:   secret keys imported: 1

(--armor is optional, it’s just for sake of checking the output first before piping it to ssh)

It’s not that hard, here are a couple pain points:

• make sure that GOPATH is right — you want to compile against your checked out docker, not master docker

I’ve just updated to kernel 3.17. I compiled the kernel, installed it, generated initramfs, updated grub.cfg and rebooted my PC. I was unpleasantly surprised by: