x/build/dashboard: update dragonfly to 6.4.0

[tuxillo]

It's long due but we should update the gobuilder from dfly 6.2.2 to 6.4.0

[dmitshur]

It seems the work of adding these builders to LUCI hasn't been done yet (#61092), so it might make sense to use 6.4.0 instead of 6.2.2 when doing that. (Since we're actively moving towards LUCI, there's less value in trying to do this update in the old infra at this point.)

@tuxillo, are you able to take a look at what adding this to LUCI would take? Also see #63471 and #60468.

CC @prattmic if you have a chance to look.

[gopherbot]

Change https://go.dev/cl/549035 mentions this issue: dashboard: update dragonfly to 6.4.0

[tuxillo]

@tuxillo, are you able to take a look at what adding this to LUCI would take? Also see #63471 and #60468.

After a quick look, I don't see any PR I could use to base the work on. Also, I'm not sure I can do this, there is step that says "Create the image and test on Luci" :)

[tuxillo]

has there been any progress? not sure what to do next.

[prattmic]

This will probably need to look something like https://go.dev/cl/526618, as that is another port that runs on GCE. We will also need to do some internal work to get LUCI to launch these VMs.

I can take a look at making adjustments to the image. Unfortunately, I tried to create the existing image, which failed in phase 2 trying to download packages:

+ pkg install -y bash curl git gdb
Feb 21 19:24:14  kernel: cd9660: RockRidge Extension
Updating Avalon repository catalogue...                              
Fetching meta.conf: 100%    163 B   0.2kB/s    00:01                                                                                         
Fetching packagesite.txz: 100%    6 MiB   1.1MB/s    00:06    
Processing entries: 100%
Avalon repository update completed. 31890 packages processed.
All repositories are up to date.    
New version of pkg detected; it needs to be installed first. 
The following 1 package(s) will be affected (of 0 checked):
                                                                                                                                             
Installed packages to be UPGRADED:
        pkg: 1.14.4 -> 1.20.9 [Avalon]
                                                                      
Number of packages to be upgraded: 1                                                                                                         
                                                                                                                                             
The process will require 2 MiB more space.                                                                                                   
3 MiB to be downloaded.                                                                                                                      
[1/1] Fetching pkg-1.20.9.pkg: 100%    3 MiB 697.4kB/s    00:05    
Checking integrity... done (0 conflicting)
[1/1] Upgrading pkg from 1.14.4 to 1.20.9...
[1/1] Extracting pkg-1.20.9: 100%               
pkg: Failed to execute lua script: [string "-- args: etc/pkg.conf.sample..."]:12: attempt to call a nil value (field 'stat')
pkg: lua script failed                   
pkg: No packages available to install matching 'bash' have been found in the repositories
pkg: No packages available to install matching 'git' have been found in the repositories
pkg: No packages available to install matching 'gdb' have been found in the repositories

Do you know what may be the problem here?