Wordpress + Mariadb communication settings?

[HenLju]

Hi!

I've managed to get Wordpress and Mariadb containers up and running in my pod (that I'm running on my Firewall, OpenSUSE Leap) but how do I get them to communicate?

Start commands:

podman pod create M.I.N.D.

podman run -d --pod M.I.N.D. --network=host -e MYSQL_ROOT_PASSWORD=******* -v mariadb_data:/var/lib/mysql docker.io/library/mariadb:10.5

podman run -d --pod M.I.N.D. --network=host wordpress:latest

Now looks like this:
podman container ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8228ab6af068 localhost/podman-pause:4.9.5-1748865600 2 hours ago Up 2 hours ee01460f2844-infra
6e8a39909dfc docker.io/library/wordpress:latest apache2-foregroun... 39 minutes ago Up 39 minutes quizzical_morse
a2a14d2c50a1 docker.io/library/mariadb:10.5 mysqld 39 minutes ago Up 39 minutes jolly_swirles

When I try to configure Wordpress it asks for "Database host" but I can't figure out what to put there?

Any ideas?

Kind regards

Henrik

[eriksjolund]

Check out two demos I wrote about wordpress and mariadb. One using Unix sockets and one using TCP sockets.

Container images used in the demos:

• docker.io/library/wordpress
• docker.io/library/mariadb

For details, see #16053 (comment)

The use of --uidmap and --gidmap could be simplified a bit in those demos because podman now supports
the new syntax --uidmap=+${uid}:@$(id -u) --gidmap=+${gid}:@$(id -g)

See for example

$  podman run --rm   --uidmap $uid:0:1  --uidmap 0:1:$uid  --uidmap $(($uid+1)):$(($uid+1)):$(($subuidSize-$uid))  --gidmap $gid:0:1  --gidmap 0:1:$gid  --gidmap $(($gid+1)):$(($gid+1)):$(($subgidSize-$gid))  docker.io/library/alpine cat /proc/self/uid_map
         0          1        999
       999          0          1
      1000       1000      64537
$  podman run --rm   --uidmap $uid:0:1  --uidmap 0:1:$uid  --uidmap $(($uid+1)):$(($uid+1)):$(($subuidSize-$uid))  --gidmap $gid:0:1  --gidmap 0:1:$gid  --gidmap $(($gid+1)):$(($gid+1)):$(($subgidSize-$gid))  docker.io/library/alpine cat /proc/self/gid_map
         0          1        999
       999          0          1
      1000       1000      64537

that can now be written much shorter:

$  podman run --rm --uidmap=+${uid}:@$(id -u)   --gidmap=+${gid}:@$(id -g)   docker.io/library/alpine cat /proc/self/uid_map
         0          1        999
       999          0          1
      1000       1000      64537
$  podman run --rm --uidmap=+${uid}:@$(id -u)   --gidmap=+${gid}:@$(id -g)   docker.io/library/alpine cat /proc/self/gid_map
         0          1        999
       999          0          1
      1000       1000      64537
$ 

[eriksjolund]

When I try to configure Wordpress it asks for "Database host" but I can't figure out what to put there?

When using a pod, you typically would use localhost

Side note: using a custom network is more secure than using --network=host