lab_okd

day zero and day one of the okd installation

Rationale

This lab is not meant for a quick peek at okd, this lab is meant to practise automating a real working environment deployment. This deployment will initially be done with 3 master nodes which will initially be configured as worker nodes. Since it is already expensive enough to use 3 real machines for this I will try to use only tools that are free to use for everybody.

After this is done I will address the following issues.

• adding worker nodes
• removing the worker role from the master nodes
• setting up gitops for the management of the cluster (argocd/git)
• adding storage (using csi)
• configuring the local registry to use that storage
• adding ldap authentication (external freeipa)
• adding certificates (using letsencrypt)

If you just want a quick peek at okd, use the code ready containers version for that.
A nice instruction can be found here for setting up the okd environment with crc.

The lab

digraph finite_state_machine {
    rankdir=LR;
    size="8,5"

    node [shape = doublecircle]; S;
    node [shape = point ]; qi

    node [shape = circle];
    qi -> S;
    S  -> q1 [ label = "a" ];
    S  -> S  [ label = "a" ];
    q1 -> S  [ label = "a" ];
    q1 -> q2 [ label = "ddb" ];
    q2 -> q1 [ label = "b" ];
    q2 -> q2 [ label = "b" ];
}

digraph switches {
  sw1 [ label="Switch 1\n192.168.1.101" ];
  sw2 [ label="Switch 2\n192.168.1.102" ];
  sw3 [ label="Switch 3\n192.168.1.103" ];
  sw4 [ label="Switch 4\n192.168.1.104" ];
  sw1 -> sw2;
  sw1 -- sw3;
  sw1 -- sw4;
  sw3 -- sw4;
  sw2 -- sw3;
}