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Ignore modprobe failures in ExecStartPre (systemd unit)

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When running containerd inside LXC, due to systemd being unable to execute
`modprobe overlay` inside the container (module is already loaded in host kernel).

This patch adds a `-` prefix to the `ExecStartPre` command, so that failures
are ignored, and the service can start as usual.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2018-11-10 12:52:06 +01:00
parent 96d30788e1
commit 555ea3fb43
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2 changed files with 2 additions and 2 deletions
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2
containerd.service
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@ -4,7 +4,7 @@ Documentation=https://containerd.io
After=network.target After=network.target
[Service] [Service]
ExecStartPre=/sbin/modprobe overlay ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd ExecStart=/usr/local/bin/containerd
Delegate=yes Delegate=yes

2
docs/ops.md
View File

@ -49,7 +49,7 @@ Documentation=https://containerd.io
After=network.target After=network.target
[Service] [Service]
ExecStartPre=/sbin/modprobe overlay ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd ExecStart=/usr/local/bin/containerd
Delegate=yes Delegate=yes
KillMode=process KillMode=process