If there are any errors in container setup after c.Create() in
Start(), the container will be left around, with no way to clean it up
because the handle will not be created or returned from Start.
Added a wrapper that checks for errors and performs appropriate
cleanup. Returning a cleanup function from a wrapped function instead
of just doing the cleanup before returning the error helps to ensure
that future changes that might add or change error exits can't forget
to consider a cleanup function.
Adds a check to the invalid config test case to check that a container
created with an invalid config doesn't get left behind.
Signed-off-by: Michael McCracken <mikmccra@cisco.com>
Related to #3681
If a user specifies an invalid port *label* when using
address_mode=driver they'll get an error message about the label being
an invalid number which is very confusing.
I also added a bunch of testing around Service.AddressMode validation
since I was concerned by the linked issue that there were cases I was
missing. Unfortunately when address_mode=driver is used there's only so
much validation that can be done as structs/structs.go validation never
peeks into the driver config which would be needed to verify the port
labels/map.
Fixes#3681
When in drive address mode Nomad should always advertise the driver's IP
in Consul even when no network exists. This matches the 0.6 behavior.
When in host address mode Nomad advertises the alloc's network's IP if
one exists. Otherwise it lets Consul determine the IP.
I also added some much needed logging around Docker's network discovery.
Allow lxc driver to accept bind mount config similarly to the docker
driver.
Includes some static sanity checks in Validate step
Signed-off-by: Michael McCracken <mikmccra@cisco.com>
Switch from global-redis-check for the example job's service name to
redis-cache. The former name is really confusing and someone finally
called us out on it:
https://groups.google.com/d/msg/nomad-tool/3RTh6CyYkWk/vEe_Sj7lAAAJ
Also specifically mention that the `service.name` parameter is what is
advertised in Consul.
Michael Schurter