It was May 2021 when I tweeted about monitoring FreeBSD jails which had jail IP addresses only in the 127.0.0.0/8 range. Yesterday, nearly 6 months later, I did the first test of this. This came up because I’m getting a new FreshPorts node ready. I’ve created a file in the jail to be run from […]
Monitoring FreeBSD jails from the host Read More »
Mark Felder and I have been working on a minimalist set of jail scripts for creating and updating jails. All jail management is accomplished via standard vanilla FreeBSD jails. No jail managers are involved. Everything goes through jail.conf. In this post: FreeBSD 13.0 host, recently update from FreeBSD 12.2 FreeBSD 12.s jail on that host,
Upgrading a FreeBSD 12.2 jail to FreeBSD 13 using mkjail Read More »
I have found this bizarre situation where a FreeBSD 12.2 snapshot cannot be destroyed. This is the simple example, which works: [dan@pkg01:~] $ sudo zfs snapshot tank_fast/poudriere@snapshot-for-backup [dan@pkg01:~] $ sudo zfs destroy tank_fast/poudriere@snapshot-for-backup [dan@pkg01:~] $ This is the simple example, which fails: [dan@pkg01:~] $ sudo zfs snapshot tank_fast/poudriere@snapshot-for-backup [dan@pkg01:~] $ ls /usr/local/poudriere/.zfs/snapshot/snapshot-for-backup cache data jails
snapshot ; ls ; destroy; dataset is busy – WTF? Read More »
In this post I will be creating a ‘new’ jail which uses vnet. I say ‘new’ because I am actually Converting an iocage jail to a vanilla jail which happens to use vnet. NOTE: I originally failed to get this to work. You can read about it. I’m going to repost this article soon with
Converting an iocage vnet jail to a vnet jail Read More »
Tonight I got blocked by iocage and handling a ZFS filesystem from within an iocage jail. These are the steps I followed to convert that jail from iocage to a vanilla jail. The variable To make this solution easier to use, at least for me, on future jail migrations, I have these variables: For example,
Converting an iocage jail to a vanilla jail Read More »
I encountered, and later solved, a DNS issue on a FreeBSD jail. The jail is my web proxy, of sorts. I have one public IP address, which is dynamic (not relevant, but mentioned only in passing) so all incoming web traffic goes to a single internal RFC-1918 IP address. From there, nginx does reverse proxies
hostmask on an ip address can affect jail DNS Read More »
Every time I go to create a new iocage jail, I cannot remember out the command. Here we go, for next time: iocage create -n devgit-ingress01 –thickjail host_hostname=devgit-ingress01.int.unixathome.org ip4_addr=10.0.0.141 –release 12.1-RELEASE iocage create -n devgit-nginx01 –thickjail host_hostname=devgit-nginx01.int.unixathome.org ip4_addr=10.0.0.147 –release 12.1-RELEASE
Creating a new iocage jail Read More »
I’m in the final stages of the FreshPorts packages project. One of the last tasks is clearing the packages cache from disk when new package information is loaded into the database. See also: Clearing the packages cache ZFS when you’re not doing ZFS Several of the configuration items have been learned from putting my poudriere
using zfs rollback for cache clearing Read More »
Be warned, this failed. I’m stalled and I have not completed this. I’m going to do jails within a jail. I already do that with poudriere in a jail but here I want to test an older version of iocage before upgrading my current jail hosts to a newer version. In this post: FreeBSD 12.1
Creating a ZFS dataset for testing iocage within a jail Read More »
FreshPorts runs on a FreeBSD server which hosts multiple jails. Two of these jails run PostgreSQL server. When upgrading from one version of PostgreSQL to another, we run pg_dump in the new jail, and load the backup into that database server. I’m writing this blog post to keep track of this procedure so I do
Migrating FreshPorts from one db server to another Read More »