build-config/apt-publisher

This is what I did initially in the `make shell` once:

```
root@9a0308ff4ef9:/home/trigen/projects/build-config/apt-publisher# gpg --gen-key
gpg: WARNING: unsafe enclosing directory ownership on configuration file `/root/.gnupg/gpg.conf'
gpg (GnuPG) 1.4.16; Copyright (C) 2013 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 4096
Requested keysize is 4096 bits
Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0) 0
Key does not expire at all
Is this correct? (y/N) y

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"

Real name: Ray Burgemeestre
Email address: ray@cppse.nl
Comment:
You selected this USER-ID:
    "Ray Burgemeestre <ray@cppse.nl>"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
You need a Passphrase to protect your secret key.

You don't want a passphrase - this is probably a *bad* idea!
I will do it anyway.  You can change your passphrase at any time,
using this program with the option "--edit-key".

We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
.................+++++

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 103 more bytes)
.+++++
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
.+++++
..+++++
gpg: key 4FEF6E3C marked as ultimately trusted
public and secret key created and signed.

gpg: checking the trustdb
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0  valid:   1  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 1u
pub   4096R/4FEF6E3C 2019-12-26
      Key fingerprint = 0398 0E09 AB56 969E 7AB3  A258 B563 6175 4FEF 6E3C
uid                  Ray Burgemeestre <ray@cppse.nl>
sub   4096R/DB72E674 2019-12-26
```

Continued executing:

```
root@9a0308ff4ef9:/home/trigen/projects/build-config/apt-publisher# gpg --edit-key 4FEF6E3C
gpg: WARNING: unsafe enclosing directory ownership on configuration file `/root/.gnupg/gpg.conf'
gpg (GnuPG) 1.4.16; Copyright (C) 2013 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Secret key is available.

pub  4096R/4FEF6E3C  created: 2019-12-26  expires: never       usage: SC
                     trust: ultimate      validity: ultimate
sub  4096R/DB72E674  created: 2019-12-26  expires: never       usage: E
[ultimate] (1). Ray Burgemeestre <ray@cppse.nl>

gpg> addkey
This key is not protected.
Please select what kind of key you want:
   (3) DSA (sign only)
   (4) RSA (sign only)
   (5) Elgamal (encrypt only)
   (6) RSA (encrypt only)
Your selection? 4
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 4096
Requested keysize is 4096 bits
Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0) 0
Key does not expire at all
Is this correct? (y/N) y
Really create? (y/N) y
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
.+++++
....+++++

pub  4096R/4FEF6E3C  created: 2019-12-26  expires: never       usage: SC
                     trust: ultimate      validity: ultimate
sub  4096R/DB72E674  created: 2019-12-26  expires: never       usage: E
sub  4096R/0354330E  created: 2019-12-26  expires: never       usage: S
[ultimate] (1). Ray Burgemeestre <ray@cppse.nl>

gpg> save
```

EDIT: did above again to make another signing key, this time with password "public".
The version of gpg in Ubuntu 14.04 has a bug that cannot handle empty passwords.

From the tutorial, 10E6133F is for me: 4FEF6E3C
              and, 7B34E07C is for me: DB72E674

             Then, A72DB3EF is for me: 0354330E << INCORRECT, see below
             Then, A72DB3EF is for me:

Then:

```
gpg --export-secret-key 4FEF6E3C > keys/private.key
gpg --export 4FEF6E3C >> keys/private.key

gpg --export 4FEF6E3C > keys/public.key
gpg --export-secret-subkeys 0354330E > keys/signing.key

```

EDIT: scratch this, retry tomorrow.
With newer ubuntu? :-)


---- delete above ---

First did instructions in INIT.TXT

Then make sure you have an "empty" repo,

reprepro -b /repo remove bionic whatever

Until it's empty, then:

	ssh-keygen -f keys/ssh < <(echo "\n\n")

Then:

	sudo tar -czf secret.tar.gz keys gnupg repo
    # might print some errors

Upload that thing to some secret URL you can use during CI


---

Usage:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5CE16B7B
sudo add-apt-repository "deb https://cppse.nl/repo/ $(lsb_release -cs) main"