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Showing posts from December, 2019
  How to upgrade Gitlab Omnibus to major version. Recently I need upgrade my self-hosted Gitlab Community from version 13.12.4-ce.0 to latest version 14.3.2-ce.0, but a simple apt update && apt-dist-upgrade was a nightmare ;/ Solution was at my eyes !!! Upgrading GitLab is a relatively straightforward process, but the complexity can increase based on the installation method you have used, how old your GitLab version is, if you’re upgrading to a major version, and so on.  ;( References: Hands on ! First I need to know my exactly current Gitlab version root@gitlab:# dpkg -al|grep gitlab ii  gitlab-ce                            13.12.4-ce.0                          amd64        GitLab Community Edition (including NGINX, Postgres, Redis) Now, what new versions are availables: # apt update # apt-cache madison gitlab-ce  gitlab-ce | 14.3.2-ce.0 |

Prometheus Server Pod with high load is frecuently evicted (how to fix)

Prometheus Server Pod with high load is frecuently evicted (how to fix) Recently I deployed Prometheus, Grafana, Alertmanager and PushGateway using the official helm chart. In this case the k8s cluster is production, so that tls is required. By the same way I have many clusters with Helm 2.x in production and some modifications was required to use differents private keys and certificates. At last I rewrite my .bashrc and others files to include something like this (only relevant sections are showed): ``` # ~/.bashrc .... # [ -f ~/.kubectl_aliases ] && source ~/.kubectl_aliases .... # kubernetes specific export KUBE_EDITOR="nano" source <(kubectl completion bash) # setup autocomplete in bash into the current shell, bash-completion package should be installed first. .... ``` Other file: ``` # ~/.bash_aliases # note for cluster AKS # Error: incompatible versions client[v2.16.1] server[v2.13.1] # https://g

How fix full disk for /data in Prometheus Server deployed with Helm chart

How fix full disk for /data in Prometheus Server deployed with Helm chart The prometheus-server pod has two containers: prometheus-server-configmap-reload and prometheus-server. Currently the prometheus-server has one disk of 20GiB and in was full in sixty days. We need to resize or change this pvc for at least 60GiB. In order to do this, we need: the prometheus-server need to be stopped backup current volume data in another pvc delete current prometheus-server pvc recreate the previous prometheus pvc restore previous backup on this new prometheus-server pvc start the previous stopped deployment of prometheus-sever There are the details: (the "k" is one alias for "kubectl") 1. the prometheus-server need to be stopped --- we need to get information for current prometheus-server deployment ``` $ k -n monitoring get deployment NAME                                    READY   UP-TO-DATE   AVAILABLE   AGE grafana