Month: November 2020

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k8s persistent volume

k patch pv imagesdev -p ‘{“spec”:{“claimRef”: null}}’

k0:/home/phomlish/kubernetes/test-pv
k config set-context –current –namespace=kube-public

k apply -f test-image.yaml
k get pod shell-demo
k exec –stdin –tty shell-demo — /bin/bash
k exec shell-demo env

k delete -f shell-demo.yaml

k get pod shell-demo -o wide

k patch pv homlishca -p ‘{“spec”:{“claimRef”: null}}’

Posted on

jenkins

https://www.jenkins.io/doc/book/installing/kubernetes/

jenkins: 10.11.168.251
jenkins-agent: 10.11.168.252

k create namespace jenkins

helm -n jenkins delete jenkins
k delete -f jenkins-persistent-volume.yaml
k create -f jenkins-persistent-volume.yaml
helm install jenkins -n jenkins -f jenkins-values.yaml jenkinsci/jenkins

finally got it workig
http://10.11.168.251

printf $(kubectl get secret –namespace jenkins jenkins -o jsonpath=”{.data.jenkins-admin-password}” | base64 –decode);echo

export POD_NAME=$(kubectl get pods –namespace jenkins -l “app.kubernetes.io/component=jenkins-master” -l “app.kubernetes.io/instance=jenkins” -o jsonpath=”{.items[0].metadata.name}”)
get pods –namespace jenkins -l “app.kubernetes.io/component=jenkins-master” -l “app.kubernetes.io/instance=jenkins” -o jsonpath=”{.items[0].metadata.name}”)

both worked:
lynx http://10.166.32.242:8080/login
lynx http://10.105.174.214:8080/login

want this to work:
lynx http://10.11.169.251/login

we need to create a load balancer with an annotation to match the jenkins pod
helm -n jenkins delete jenkins
k delete -f jenkins-persistent-volume.yaml
k create -f jenkins-persistent-volume.yaml
helm install jenkins -n jenkins -f jenkins-values.yaml jenkinsci/jenkins

k delete -f jenkins-service-ui.yaml
k apply -f jenkins-service-ui.yaml

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Posted on

apcupsd

multiple ups devices
https://wiki.debian.org/apcupsd

root@a6:/etc/apcupsd# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 001 Device 005: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 001 Device 004: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 001 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

root@a6:/etc/apcupsd# udevadm info –attribute-walk –name=/dev/usb/hiddev0 | egrep ‘manufacturer|product|serial’
ATTRS{manufacturer}==”American Power Conversion”
ATTRS{product}==”Back-UPS ES 600M1 FW:928.a8 .D USB FW:a8 ”
ATTRS{serial}==”4B1903P08928 ”
ATTRS{serial}==”0000:00:14.0″
ATTRS{product}==”xHCI Host Controller”
ATTRS{manufacturer}==”Linux 4.19.0-12-amd64 xhci-hcd”
root@a6:/etc/apcupsd# udevadm info –attribute-walk –name=/dev/usb/hiddev1 | egrep ‘manufacturer|product|serial’
ATTRS{manufacturer}==”American Power Conversion”
ATTRS{product}==”Back-UPS 350 FW: 5.4.D USB FW: c1 ”
ATTRS{serial}==”BB0236018154″
ATTRS{serial}==”0000:00:14.0″
ATTRS{manufacturer}==”Linux 4.19.0-12-amd64 xhci-hcd”
ATTRS{product}==”xHCI Host Controller”

root@a6:/etc/apcupsd# ls -l /dev/usb
total 0
crw——- 1 root root 180, 0 Jan 12 05:50 hiddev0
crw——- 1 root root 180, 1 Jan 12 05:50 hiddev1
lrwxrwxrwx 1 root root 7 Jan 12 05:50 ups-server -> hiddev1
lrwxrwxrwx 1 root root 7 Jan 12 05:50 ups-spare -> hiddev1

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