Vitaliy Filippov
ec6a70bbd3
- New store fixes: - Fix repeated rollback logic - Fix crash on rolled back object compaction - Fix postpone_load possibly merging different object chains - Fix block_csums import in vitastor-disk write-meta - Fix header checksum after vitastor-disk write-meta - Old store fixes: - Fix batched fsync possibly skipped by some flush coroutines - Improve ENOSPC test, fix possible crash on ENOSPC - Add fsyncs to vitastor-disk prepare - Fix possible crash on pg_lock check failure in sec_read_bmp - Fix VitastorFS initialization when local_reads are enabled
85 lines
2.8 KiB
Markdown
85 lines
2.8 KiB
Markdown
[Documentation](../../README.md#documentation) → Installation → Dockerized Installation
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-----
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[Читать на русском](docker.ru.md)
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# Dockerized Installation
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Vitastor may be installed in Docker/Podman. In such setups etcd, monitors and OSD
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all run in containers, but everything else looks as close as possible to a usual
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setup with packages:
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- host network is used
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- auto-start is implemented through udev and systemd
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- logs are written to journald (not docker json log files)
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- command-line wrapper scripts are installed to the host system to call vitastor-disk,
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vitastor-cli and others through the container
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Such installations may be useful when it's impossible or inconvenient to install
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Vitastor from packages, for example, in exotic Linux distributions.
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If you don't want just a simple containerized installation, you can also take a look
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at Vitastor Kubernetes operator: https://github.com/Antilles7227/vitastor-operator
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## Installing Containers
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The instruction is very simple.
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1. Download a Docker image of the desired version: \
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`docker pull vitalif/vitastor:v3.0.13`
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2. Install scripts to the host system: \
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`docker run --rm -it -v /etc:/host-etc -v /usr/bin:/host-bin vitalif/vitastor:v3.0.13 install.sh`
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3. Reload udev rules: \
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`udevadm control --reload-rules`
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4. Enable the vitastor-host service: \
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`systemctl enable --now vitastor-host`
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After these steps, you can return to [Quick Start](../intro/quickstart.en.md).
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## Podman
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If you use Podman, run the following commands as root before installing Vitastor containers:
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```
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ln -s podman /usr/bin/docker
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mkdir -p /etc/systemd/system/systemd-udevd.service.d
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cat >/etc/systemd/system/systemd-udevd.service.d/override.conf <<EOF
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[Service]
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CapabilityBoundingSet=~
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SystemCallFilter=@mount capset
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EOF
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systemctl daemon-reload
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systemctl restart systemd-udevd
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```
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Without it, udev fails to do calls into a Podman container and Vitastor disk detection doesn't work.
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## Upgrading Containers
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First make sure to check the topic [Upgrading Vitastor](../usage/admin.en.md#upgrading-vitastor)
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to figure out if you need any additional steps.
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Then, to upgrade a containerized installation, you just need to change the `VITASTOR_VERSION`
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option in `/etc/vitastor/docker.conf` and restart all Vitastor services:
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`systemctl restart vitastor.target`
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## QEMU
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Vitastor Docker image also contains QEMU, qemu-img and qemu-storage-daemon built with Vitastor support.
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However, running QEMU in Docker is harder to setup and it depends on the used virtualization UI
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(OpenNebula, Proxmox and so on). Some of them also required patched Libvirt.
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That's why containerized installation of Vitastor doesn't contain a ready-made QEMU setup and it's
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recommended to install QEMU from packages or build it manually.
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## fio
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Vitastor Docker image also contains fio and installs a wrapper called `vitastor-fio` to use it from
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the host system.
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