Guru Of Geeks

https://youtube.com/playlist?list=PL6nVblW4NNAQrgSjhT8iK_v7ROIV2ikVu

https://github.com/mhansen/ansible-trace?ref=FAUN-DevOpsLinks291  

https://stackoverflow.com/questions/56630871/how-to-convert-k8s-yaml-to-helm-chart  

You can try to delete the namespace with a  curl  command to Openshift API: 1.  Get namespace status into json file: oc get namespace $NS_TO_DELETE -o json > tmp_ns.json 2.  Remove the line with "kubernetes" (under "finalizers"): vi tmp_ns.json 3.  Open proxy connection to your cluster (as a background process) oc proxy & 4.  Push the json content to your cluster with curl: curl -k -H "Content-Type: application/json" -X PUT --data-binary @tmp_ns.json http://127.0.0.1:8001/api/v1/namespaces/$NS_TO_DELETE/finalize 5.  your-namespace should be gone now: oc get namespace $NS_TO_DELETE # namespaces not found 6.  Switch to the background process ( fg ) of the Proxy and stop it (Ctrl+c), or directly with: kill -9 %% Note:  If you have  jq  installed, you can run steps 1 & 2 by:  oc get namespace $NS_TO_DELETE -o json | jq '.spec = {"finalizers":[]}' > tmp_ns.json

https://learnk8s.io/troubleshooting-deployments  

helm repo add ingress-nginx  https://kubernetes.github.io/ingress-nginx helm repo update helm install ingress-nginx ingress-nginx/ingress-nginx --set controller.ingressClass=ingress-nginx

grafana /values.yaml dashboardProviders :   dashboardproviders.yaml :     apiVersion : 1     providers :    - name : 'default'       orgId : 1       folder : ''       type : file       disableDeletion : false       editable : true       options :         path : /var/lib/grafana/dashboards/default dashboards :   default :     easyconnectjvm :       file : dashboards/<dashboard>.json       datasource : Prometheus Dashboards is in grafana chart folder

https://mermaid-js.github.io/mermaid/#/ https://mermaid-js.github.io/mermaid-live-editor/#/

https://devopscube.com/list-of-devops-blogs-and-resources/  

https://github.com/tomhuang12/awesome-k8s-resources  

https://github.com/ahmetb/kubernetes-network-policy-recipes  

ISSUE: error: rpmdb: BDB0113 Thread/process 2211/140737353943104 failed: BDB1507 Thread died in Berkeley DB library error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery error: cannot open Packages index using db5 -  (-30973) error: cannot open Packages database in /var/lib/rpm CRITICAL:yum.main: Solution: mkdir /var/lib/rpm/backup cp -a /var/lib/rpm/__db* /var/lib/rpm/backup/ rm -f /var/lib/rpm/__db.[0-9][0-9]* rpm --quiet -qa rpm --rebuilddb yum clean all

https://docs.google.com/spreadsheets/d/191WWNpjJ2za6-nbG4ZoUMXMpUK8KlCIosvQB0f-oq3k/htmlview#gid=907731238

create an unprivileged LXC container in Proxmox based on the the template of your choice apt-get update & apt-get upgrade (eventually 2x if you get an « unable to fetch some archives… » message in the end) install curl if it was not provided by the distribution curl -fsSL  https://download.docker.com/linux/  179 <your_distro>/gpg | sudo apt-key add - where <your_distro> is "debian" or "ubuntu" or whatever (altough I didn't test the others) edit /etc/apt/sources.list and add the appropriate repository from docker : deb [arch=amd64]  https://download.docker.com/linux/debian  60  stretch stable deb [arch=amd64]  https://download.docker.com/linux/ubuntu  54  xenial stable apt-get update apt-cache policy docker-ce to ensure that a package for docker-ce is available apt-get install docker-ce systemctl status docker should return « Active (running) » In case not (trick  #1 ), work around the systemd bug by adding an "ExecStartPre=" to containe...

The redis error is coming out of catalog-api pod. Please restart following pods: redis-ha-haproxy* oc delete pod -n <project> -l app=redis-ha dc-main* portal-catalog-* catalog-api-* wkc-gov-ui*

Issue: [root@infosvr bin]# ./installUpdates INFO: Patch Installation program will be running in this session, please do not close patch installation window until patch installation program completes. The Update installation program started at 1/27/21 10:21 AM. Exception in thread "main" java.lang.NoSuchMethodError: org/eclipse/jetty/util/ssl/SslContextFactory$Server.setEndpointIdentificationAlgorithm(Ljava/lang/String;)V (loaded from file:/opt/IBM/InformationServer/Updates/server/lib/jetty-util-9.4.19.v20190610.jar by java.net.FactoryURLClassLoader@d4db3a4a) called from class org.eclipse.jetty.util.ssl.SslContextFactory$Server (loaded from file:/opt/IBM/InformationServer/Updates/server/lib/jetty-util-9.4.19.v20190610.jar by java.net.FactoryURLClassLoader@d4db3a4a).         at org.eclipse.jetty.util.ssl.SslContextFactory$Server.<init>(SslContextFactory.java:2213)         at com.ibm.is.install.ui.web.JettyWebContainer.init(JettyWebContainer.java:91)         at com.ibm.is....

Issue: SQL1072C  The request failed because the database manager resources are in an inconsistent state.  The database manager might have been incorrectly terminated, or another application might be using system resources in a way that conflicts with the use of system resources by the database manager. SQL1072C  The request failed because the database manager resources are in an inconsistent state.  The database manager might have been incorrectly terminated, or another application might be using system resources in a way that conflicts with the use of system resources by the database manager. Answer To resolve this error run the following commands: 1) cd to $INSTHOME/sqllib 2) Delete the .ftok file: 'rm .ftok' 3) Create a new .ftok file: 'touch .ftok' 4 ) db2start