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COS/GCE: Ensure TasksMax is sufficient for docker

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This affects how many threads/processes docker can create, and should
not be limited.
This commit is contained in:
Yu-Ju Hong 2017-09-05 15:33:53 -07:00
parent 8b9e8cf80a
commit d6de90e8f7
1 changed files with 11 additions and 5 deletions
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16
cluster/gce/gci/configure-helper.sh
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@ -811,20 +811,26 @@ function assemble-docker-flags {
# If using a network plugin, extend the docker configuration to always remove # If using a network plugin, extend the docker configuration to always remove
# the network checkpoint to avoid corrupt checkpoints. # the network checkpoint to avoid corrupt checkpoints.
# (https://github.com/docker/docker/issues/18283). # (https://github.com/docker/docker/issues/18283).
echo "Extend the default docker.service configuration" echo "Extend the docker.service configuration to remove the network checkpiont"
mkdir -p /etc/systemd/system/docker.service.d mkdir -p /etc/systemd/system/docker.service.d
cat <<EOF >/etc/systemd/system/docker.service.d/01network.conf cat <<EOF >/etc/systemd/system/docker.service.d/01network.conf
[Service] [Service]
ExecStartPre=/bin/sh -x -c "rm -rf /var/lib/docker/network" ExecStartPre=/bin/sh -x -c "rm -rf /var/lib/docker/network"
EOF
fi
# Ensure TasksMax is sufficient for docker.
# (https://github.com/kubernetes/kubernetes/issues/51977)
echo "Extend the docker.service configuration to set a higher pids limit"
mkdir -p /etc/systemd/system/docker.service.d
cat <<EOF >/etc/systemd/system/docker.service.d/02tasksmax.conf
[Service]
TasksMax=infinity
EOF EOF
systemctl daemon-reload systemctl daemon-reload
# If using a network plugin, we need to explicitly restart docker daemon, because
# kubelet will not do it.
echo "Docker command line is updated. Restart docker to pick it up" echo "Docker command line is updated. Restart docker to pick it up"
systemctl restart docker systemctl restart docker
fi
} }
# This function assembles the kubelet systemd service file and starts it # This function assembles the kubelet systemd service file and starts it