Introduction One of a number of posts on GitLab CI, see the gitlab-runner tag. Initial goal is to add syntax checking, validation, etc., to my puppet control-repo. It took me a little while to piece it together, and these are my notes. The starting page for official docs is https://docs.gitlab.com/runner/ but there’s pockets in other […]
The Pi has a hardware random number generator. Source. Hat tip. This is running Centos 7. It presents as /dev/hwrng. yum install rng-tools systemctl enable rngd systemctl start rngd # rngd -l Entropy sources that are available but disabled 1: TPM RNG Device 4: NIST Network Entropy Beacon Oh. It’s running as a daemon on […]
Messing around with DHCP for the raspberry pi that’s going to be aggregating syslogs. Raspberry Pi running 32 bit Centos 7; primary interface addressed using DHCP. I assigned it a static DHCP allocation, a different IP. Restarted the NetworkManager service. Nothing seemed to happen. Logged out, logged back in (using the original IP.) Still works. […]
Summary The goal was to create a syslog server on a Raspberry Pi, so I can ship all my logs to a low power machine that’ll be on all the time. tl;dr – a bit optimistic. The limited memory would probably require Elasticsearch (ES) and Logstash (LS) on different machines. I think Logstash really wants […]
Tripped over an issue recycling a disk using LVM WARNING: dos signature detected on /dev/disk/by-id/ata-TOSHIBA_MK6459GSX_X9QCF7BGS at offset 510. Wipe it? [y/n]: [n] Aborted wiping of dos. 1 existing signature left on the device. This came from (failed) volume group creation within a puppet run. hat-tip. There’s a tool called wipefs which fixes this. I’d like […]
There’s no armv7l packages of the puppet agent, so I need to run it from source. The docs for doing this date back to 3.8. Also helped by this post by Brandon Martin. I’ll be looking to run the following client version to match my PE install. # puppet –version 4.10.12 Pre-requisites Applicable requirements come […]
My notes on getting these bootstrapped. Get image onto SD card Example is for centos 7.6, released 2018-10 (1810) centos docs img=CentOS-Userland-7-armv7hl-RaspberryPI-Minimal-1810-sda.raw unxz ${img}.xz sudo dd if=./${img} of=/dev/mmcblk1 status=progress bs=8192 ; sudo sync At time of writing, this was a Centos 7.6 image, and by default had a 1.4gb ext4 root partition with 421mb free, […]
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