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Tag Archives: linux
Run Jenkins and Jenkins agents on Docker
I have managed a Gitlab instance for a couple of years, but for some organizations, Gitlab is overkill. For some people, Gitea is enough. However, Gitea does not have production-ready CI/CD yet. Fortunately, it’s possible to link Jenkins to Gitea. … Continue reading
Posted in Docker, Linux
Tagged cicd, devops, docker, jenkins, linux, programming, python
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A Raspberry Pi, a UPS and a couple of ESXi servers walk into a bar
If you have the power of multiple servers connected to a UPS, you probably need to shut them down when the power goes down and before the UPS runs out of juice. Unless your UPS can be connected to the … Continue reading
Posted in Computer, Linux, Networking
Tagged debian, esxi, linux, raspberrypi, ups, vmware
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Running a PKI using Smallstep certificates with Docker
Recently, I had to set up a new PKI. I was going to go with the good old OpenSSL but it’s 2021, there must be a more userfriendly and, more importantly, automated approach. There are many open-source possibilities: EJBCA, cfssl, … Continue reading
Posted in Computer, Linux, Uncategorized
Tagged docker, linux, pki, self-hosted, smallstep
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Deprecation of apt-key in Debian-based distributions
I recently installed an Ubuntu 21.04 and when I wanted to install Atom editor, I was given the following warning about apt-key being deprecated: After a bit of Googling around, I stumbled on this post on askubuntu.com explaining why apt-key … Continue reading
Gitlab-runner and docker behind a proxy
After reading many articles and trying many things, this is how I solved it. For docker daemon itself to use a proxy, configure environment variables using systemd file /etc/systemd/system/docker.service.d/http-proxy.conf : For gitlab-runner daemon itself to use a proxy, configure environment … Continue reading
Post install steps with Gitlab
It happens I recently had to install Gitlab and was a bit lost about what to do right after the setup finished, perhaps this will help. By default, Gitlab stores its data files in /var/opt/gitlab and its backups in /var/opt/gitlab/backups … Continue reading
rsyslogd auto-configuration
To have rsyslogd automatically create directories and files with whatever you send at it, just put this in your rsyslog.conf file (or a .conf file in /etc/rsyslog.d): # provide UDP syslog reception $ModLoad imudp $UDPServerRun 514 $template DynFile,”/var/log/syslogs/%fromhost-ip%-%fromhost%/%$YEAR%-%$MONTH%-%syslogfacility-text%” # log … Continue reading
Ubuntu 12.04 on HP Microserver N40L
Just some thoughts and things I’ve done. The hardware is the following: the Microserver itself, 2x 4GB DDR3, one 16GB USB flash drive, some 2TB SATA hard drives, Logitech S-150 USB speakers, and a GT520 HDMI+DVI graphic card. Installation on … Continue reading
Posted in Computer, Linux, Virtualization
Tagged linux, monitoring, network, precise pangolin, ubuntu
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Bug: Debian, Munin, graphes CGI et groupes
Short story: C’est l’histoire d’un bug dans un logiciel, Munin. Le bug rend impossible la génération des graphes en CGI lorsque l’hôte appartient à un sous-groupe. Le patch corrigeant ce bug est disponible ici. Long story: Ce bug a … Continue reading
Aligner une partition avec des secteurs de 4096 octets
Et on trouve la solution ici : http://workingdirectory.net/posts/2010/two-tb-disks/ ! Je ne reprends que la partie qui m’intéresse: utiliser parted (récent) créer un label gpt (car évidemment, les disques font plus de 2 teraoctets, sinon les secteurs ne feraient pas 4096 octets) … Continue reading
Posted in Computer, Linux
Tagged 4096 bytes, align, disk, gpt, linux, parted, partition
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