Single-node K8S

Demo of onyx.bstk.co running K3S.

[DRAFT]  

Busy reworking the demo. Recently I migrated the K3S instance from Vultr to AWS. Both work fine but I wanted to consolidate workflows and leverage unused RI credits I have in AWS. I’m not running any workloads on this instance that would incur any significant cost in terms of network traffic.

I’m posting the draft as a non-draft to test the new website layout and behavior across devices and viewport sizes.

Shane

Fenced code block syntax highlighting test  

# Comment

function ls_lh {
    base_dir="${1:-.}"
    for idx in $(seq 1); do
        ls -lh "${base_dir}" | cat
    done
}

echo "scale=512; 4*a(1);" | bc -l

Objectives  

• Identify scaling bottlenecks
• Interact with scaling levers
• Identify key reliability metrics
• Assess infrastructure performance efficiency
• Assess infrastructure cost efficiency

Sections  

instance bringup  

1. terraform unit
2. sizing (mem, disk), ami, network
3. terraform ops workflow

instance provisioning  

1. ansible directory structure
2. ansible ops workflow

secrets management  

1. access control, rotation, revokation
2. vault secrets
3. ci/cd secrets
4. sealed secrets
5. k8s secrets

observability  

1. logging
   1. Cluster level logging
2. metrics
   1. prometheus
   2. grafana
   3. influxdb
3. tracing
   1. service mesh
   2. jaeger
4. choosing k8s or standalone deployment
5. convergence using google hosted prometheus (multi-layer)

app scaling  

1. manual
2. hpa

cluster scaling  

1. manual
2. node-autoscaler

load generation  

1. method-1-k6.sh (see ansible playbook for instance-caddy)
2. method-2-ab.sh (see ansible playbook for instance-caddy)
3. method-3-wrk.sh (see ansible playbook for instance-caddy)

app auth  

1. cognito
2. firebase
3. authlib
4. auth0
5. okta

Links  

• https://ipaddr.onyx.bstk.co/
• https://podinfo.onyx.bstk.co/
• https://python-flask-auth0.onyx.bstk.co/
• https://python-flask-login.onyx.bstk.co/golink/
• https://prometheus.onyx.bstk.co/
• https://grafana.onyx.bstk.co/
• https://influxdb.onyx.bstk.co/