container · docker · linux

docker: delete containers running for a long time

If you need to delete running containers based on their lifetime, this handy combination of commands can help you. It deletes all containers running for more than 2 hours. HOUR=2docker ps –filter “status=running” | grep hours | awk ‘{if ($4 >=$HOUR) print $1,”must be deleted”; system(“docker rm -f ” $1)}’

linux · ppc64le · rhel

ppc64le: building a custom version of grub2

If you need to test a custom version of grub2 you can follow the steps bellow to build the necessary packages for RHEL8 (it should also work on CentOS and Fedora):

gitlab · linux · power · ppc64le

ppc64le: building GitLab Runner

To build GitLab Runner for ppc64le you can run the following steps in a x86_64 machine with Ubuntu 20.04:

IBM Cloud · linux · minicloud · PowerVS · ppc64le

ppc64le: creating a new CentOS8 .ova image for PowerVS

creating a new CentOS8 .ova image for PowerVS without a PowerVC 🙂


linux: pretty printing multi-path device name and size

As part of an automation I had to collect only the name and size of the multi-path devices attached to a given VM. Here is the result: multipath -ll | sed -n ‘/^mpath/,/^size/p’ >> /tmp/mpath.log && x=1 && while IFS=”” read -r p || [ -n “$p” ]; do STR1=$(printf ‘%s\n’ “$p” | sed ‘s/\s.*$//’);… Continue reading linux: pretty printing multi-path device name and size

cloud · container · docker · linux · ppc64le

ppc64le: Docker 19.03 on RHEL8

The source code for the build can be found at

linux · windows · x86_64

recover windows key from linux

that’s all!

container · go · linux · ppc64le

linux: building and executing containerd on Power

containerd is an industry-standard container runtime with an emphasis on simplicity, robustness and portability [1]. In this tutorial we are going to build and execute it on Power. Before we get started building it, we need to get a Power VM. Ask for a FREE account at Once you get it, you can start… Continue reading linux: building and executing containerd on Power

docker · linux

docker: get the env vars within the container


linux: add users in batch mode