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netns: fail when netns already exists

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Under normal circumstances, service-specific netns should never exist
before the netns setup service starts.
An existing netns is a genuine error that should not be silently ignored.
This commit is contained in:
Erik Arvstedt 2020-11-03 21:54:13 +01:00
parent dbad828851
commit 63a464431b
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modules/netns-isolation.nix
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@ -152,7 +152,6 @@ in {
requiredBy = bindsTo; requiredBy = bindsTo;
before = bindsTo; before = bindsTo;
script = '' script = ''
${ip} netns delete ${netnsName} 2> /dev/null || true
${ip} netns add ${netnsName} ${ip} netns add ${netnsName}
${ipNetns} link set lo up ${ipNetns} link set lo up
${ip} link add ${veth} type veth peer name ${peer} ${ip} link add ${veth} type veth peer name ${peer}