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"""
Control Apache Traffic Server
=============================
.. versionadded:: 2015.8.0
"""
def __virtual__():
"""
Only load if the Traffic Server module is available in __salt__
"""
if "trafficserver.set_config" in __salt__:
return "trafficserver"
return (False, "trafficserver module could not be loaded")
def bounce_cluster(name):
"""
Bounce all Traffic Server nodes in the cluster. Bouncing Traffic Server
shuts down and immediately restarts Traffic Server, node-by-node.
.. code-block:: yaml
bounce_ats_cluster:
trafficserver.bounce_cluster
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Bouncing cluster"
return ret
__salt__["trafficserver.bounce_cluster"]()
ret["result"] = True
ret["comment"] = "Bounced cluster"
return ret
def bounce_local(name, drain=False):
"""
Bounce Traffic Server on the local node. Bouncing Traffic Server shuts down
and immediately restarts the Traffic Server node.
This option modifies the behavior of traffic_line -b and traffic_line -L
such that traffic_server is not shut down until the number of active client
connections drops to the number given by the
proxy.config.restart.active_client_threshold configuration variable.
.. code-block:: yaml
bounce_ats_local:
trafficserver.bounce_local
bounce_ats_local:
trafficserver.bounce_local
- drain: True
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Bouncing local node"
return ret
if drain:
__salt__["trafficserver.bounce_local"](drain=True)
ret["result"] = True
ret["comment"] = "Bounced local node with drain option"
return ret
else:
__salt__["trafficserver.bounce_local"]()
ret["result"] = True
ret["comment"] = "Bounced local node"
return ret
def clear_cluster(name):
"""
Clears accumulated statistics on all nodes in the cluster.
.. code-block:: yaml
clear_ats_cluster:
trafficserver.clear_cluster
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Clearing cluster statistics"
return ret
__salt__["trafficserver.clear_cluster"]()
ret["result"] = True
ret["comment"] = "Cleared cluster statistics"
return ret
def clear_node(name):
"""
Clears accumulated statistics on the local node.
.. code-block:: yaml
clear_ats_node:
trafficserver.clear_node
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Clearing local node statistics"
return ret
__salt__["trafficserver.clear_node"]()
ret["result"] = True
ret["comment"] = "Cleared local node statistics"
return ret
def restart_cluster(name):
"""
Restart the traffic_manager process and the traffic_server process on all
the nodes in a cluster.
.. code-block:: bash
restart_ats_cluster:
trafficserver.restart_cluster
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Restarting cluster"
return ret
__salt__["trafficserver.restart_cluster"]()
ret["result"] = True
ret["comment"] = "Restarted cluster"
return ret
def restart_local(name, drain=False):
"""
Restart the traffic_manager and traffic_server processes on the local node.
This option modifies the behavior of traffic_line -b and traffic_line -L
such that traffic_server is not shut down until the number of active client
connections drops to the number given by the
proxy.config.restart.active_client_threshold configuration variable.
.. code-block:: yaml
restart_ats_local:
trafficserver.restart_local
restart_ats_local_drain:
trafficserver.restart_local
- drain: True
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Restarting local node"
return ret
if drain:
__salt__["trafficserver.restart_local"](drain=True)
ret["result"] = True
ret["comment"] = "Restarted local node with drain option"
return ret
else:
__salt__["trafficserver.restart_local"]()
ret["result"] = True
ret["comment"] = "Restarted local node"
return ret
def config(name, value):
"""
Set Traffic Server configuration variable values.
.. code-block:: yaml
proxy.config.proxy_name:
trafficserver.config:
- value: cdn.site.domain.tld
OR
traffic_server_setting:
trafficserver.config:
- name: proxy.config.proxy_name
- value: cdn.site.domain.tld
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Configuring {} to {}".format(
name,
value,
)
return ret
__salt__["trafficserver.set_config"](name, value)
ret["result"] = True
ret["comment"] = f"Configured {name} to {value}"
return ret
def shutdown(name):
"""
Shut down Traffic Server on the local node.
.. code-block:: yaml
shutdown_ats:
trafficserver.shutdown
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Shutting down local node"
return ret
__salt__["trafficserver.shutdown"]()
ret["result"] = True
ret["comment"] = "Shutdown local node"
return ret
def startup(name):
"""
Start Traffic Server on the local node.
.. code-block:: yaml
startup_ats:
trafficserver.startup
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Starting up local node"
return ret
__salt__["trafficserver.startup"]()
ret["result"] = True
ret["comment"] = "Starting up local node"
return ret
def refresh(name):
"""
Initiate a Traffic Server configuration file reread. Use this command to
update the running configuration after any configuration file modification.
The timestamp of the last reconfiguration event (in seconds since epoch) is
published in the proxy.node.config.reconfigure_time metric.
.. code-block:: yaml
refresh_ats:
trafficserver.refresh
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Refreshing local node configuration"
return ret
__salt__["trafficserver.refresh"]()
ret["result"] = True
ret["comment"] = "Refreshed local node configuration"
return ret
def zero_cluster(name):
"""
Reset performance statistics to zero across the cluster.
.. code-block:: yaml
zero_ats_cluster:
trafficserver.zero_cluster
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Zeroing cluster statistics"
return ret
__salt__["trafficserver.zero_cluster"]()
ret["result"] = True
ret["comment"] = "Zeroed cluster statistics"
return ret
def zero_node(name):
"""
Reset performance statistics to zero on the local node.
.. code-block:: yaml
zero_ats_node:
trafficserver.zero_node
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = "Zeroing local node statistics"
return ret
__salt__["trafficserver.zero_node"]()
ret["result"] = True
ret["comment"] = "Zeroed local node statistics"
return ret
def offline(name, path):
"""
Mark a cache storage device as offline. The storage is identified by a path
which must match exactly a path specified in storage.config. This removes
the storage from the cache and redirects requests that would have used this
storage to other storage. This has exactly the same effect as a disk
failure for that storage. This does not persist across restarts of the
traffic_server process.
.. code-block:: yaml
offline_ats_path:
trafficserver.offline:
- path: /path/to/cache
"""
ret = {"name": name, "changes": {}, "result": None, "comment": ""}
if __opts__["test"]:
ret["comment"] = f"Setting {path} to offline"
return ret
__salt__["trafficserver.offline"](path)
ret["result"] = True
ret["comment"] = f"Set {path} as offline"
return ret