iocage

Converting an iocage jail to a vanilla jail

3 Comments / iocage, Jails, py-iocage / By /

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, my devgit-nginx01 jail is at: [dan@knew:~] $ zfs list system/iocage/jails/mysql56 NAME USED AVAIL REFER MOUNTPOINT system/iocage/jails/mysql56 11.5G 20.6T […]

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hostmask on an ip address can affect jail DNS

Leave a Comment / DNS, iocage, Jails, named, py-iocage / By /

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 out to the various hosts: devgit.freshports.org dev.freshports.org test.freshports.org stage.freshports.org There are more, but you get the idea. Each

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Converting an iocage jail from vnet

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There are known problems with vnet and firewalls. I’ve been plagued by such issues for months. In this case, my git jail, I’m giving up and moving away from vnet jails. This post documents how I did this. Get the IP address Make sure you know the existing IP address of that jail. It might be defined within the jail, via /etc/rc.conf. It might be in the jail configuration. I ssh‘d into the

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Creating a new iocage jail

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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

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using zfs rollback for cache clearing

2 Comments / iocage, Jails, ZFS / By /

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 instance into a jail. In this post: FreeBSD 12.1 py37-iocage-1.2_5 If I was to do this cache clearing

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Creating a ZFS dataset for testing iocage within a jail

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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 py36-iocage-1.2_3 py36-iocage-1.2_4 This post includes my errors and mistakes. Perhaps you should proceed carefully and read it all

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Migrating FreshPorts from one db server to another

Leave a Comment / FreeBSD, FreshPorts, iocage, Jails, Open Source / By /

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 not have to remember it each time. take website offline sudo mv mv offline.conf.disabled offline.conf && \ sudo

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Migrating a Dell TL4000 to a new FreeBSD server and attaching it to a jail

Leave a Comment / Bacula, FreeBSD, iocage, Jails, Open Source / By /

I recently migrated a bunch of jails from one server to another. Today I attached the Dell TL4000 tape library. A jail on this server copied Bacula backups from disk to tape. In this post: FreeBSD 12.0 Bacula 9.4.3 Dell R720 Investigation As anticipated, I needed to update the server configuration to cope with changed device numbers. The symptoms: when running the update slots command from within bconsole, I was getting this response.

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How allow.mount.zfs affects mountpoints for ZFS

Leave a Comment / FreeBSD, iocage, Jails, Open Source, ZFS / By /

I noticed this the other day, and thought it was interesting. When the jailed property is set on a ZFS fileset, it affects the mountpoint within the jail. If your jail uses allow.mount.zfs (known as allow_mount_zfs when using iocage), the mountpoints become relative to the jail. For example, in my poudriere jail, this is what I see the main dataset: [dan@pkg01:~] $ zfs list tank_fast/poudriere NAME USED AVAIL REFER MOUNTPOINT tank_fast/poudriere 51.1G 452G

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Migrating all your iocage jails to a new host

Leave a Comment / DELL, Disks, FreeBSD, hardware, iocage, Jails, Open Source, R710, R720 / By /

In this post, I’m not exporting an iocage jail to another host. I am moving the entire iocage instance to another host. This is accomplished by doing a zfs export on the zpool, moving the drives to a new system, and doing a zfs import. The drive migration is covered in a previous post. In this post: FreeBSD iocage old host: R710 – r710-01 new host: R720 – r720-01 The first power The

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