c12s-kubespray/roles/container-engine/docker/templates/docker.service.j2

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[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
{% if ansible_os_family == "RedHat" %}
After=network.target docker-storage-setup.service
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Wants=docker-storage-setup.service
{% elif ansible_os_family == "Debian" %}
After=network.target docker.socket
Wants=docker.socket
{% elif ansible_os_family == "Suse" %}
After=network.target containerd.socket containerd.service
Requires=containerd.socket containerd.service
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{% endif %}
[Service]
Type=notify
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{% if docker_storage_options is defined %}
Environment="DOCKER_STORAGE_OPTIONS={{ docker_storage_options }}"
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{% endif %}
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Environment=GOTRACEBACK=crash
ExecReload=/bin/kill -s HUP $MAINPID
Delegate=yes
KillMode=process
ExecStart={{ docker_bin_dir }}/docker{% if installed_docker_version.stdout is version('17.03', '<') %} daemon{% else %}d{% endif %} \
{% if ansible_os_family == "Suse" %}
--containerd /run/containerd/containerd.sock --add-runtime oci=/usr/bin/docker-runc \
{% endif %}
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$DOCKER_OPTS \
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$DOCKER_STORAGE_OPTIONS \
$DOCKER_NETWORK_OPTIONS \
$DOCKER_DNS_OPTIONS \
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$INSECURE_REGISTRY
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{% if not is_atomic and systemd_version.stdout|int >= 226 %}
TasksMax=infinity
{% endif %}
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LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
TimeoutStartSec=1min
# restart the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
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[Install]
WantedBy=multi-user.target