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run-os-net-config.sh only allows for limited customization of the
network configuration in config.json. Namely, it only customizes the
bridge_name and interface_name.
This will likely not be sufficient for all use cases. This patch adds a
generic network_config_hook bash function that will be called if it is
defined. The function is an entry point for deployers to write custom
code to further influence run-os-net-config.sh.
A possible alternative approach would be to pass the server resource
into the NetworkConfig template. That would allow running arbitrary
SoftwareDeployments on the server before NetworkDeployment is executed.
However, the interface of NetworkDeployment is likely still not as
flexible as this approach as the inputs are hardcoded in the role
template files (role.role.j2.yaml), which are not meant to be modified
by deployers.
The immediate use case for this work is using os-net-config in our
multinode CI jobs where we need to create vxlan tunnels between the
nodes and we need to know the local private IP of each node for the
tunnel endpoint. As the IP is different for each node, it's not a
parameter we could specify in the templates.
Change-Id: I26d0ebdaba6fcd3fe885e41ed234eb79a2405228
Implements: blueprint multinode-ci-os-net-config
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Update the run-os-net-config.sh so that we make the
bridge_name and interface_name parameters (supplied by
the SoftwareConfig) optional. This allows operators to
create custom network templates to be used on roles other than
compute and controller which appear to be the only two roles which
set bridge_name and interface_name parameters.
Change-Id: I8997cf8177c1bf0e1f19de5f93dc4e81da1a951f
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Wire in os-net-config via a normal script heat deployment, which has the
following advantages:
1. Improved error path, currently o-a-c deployments don't report any
errors, thus hang and eventually the deployment times out
2. It's far more hackable from a deployer perspective, e.g it's
much easier to change the os-net-config options or include a
mapping file
3. Reduces our dependencies on o-a-c (it's only os-net-config and hiera
which requires it), although the script does currently still use oac to
get the metadata IP.
4. May enable passing os-net-config yaml via a json parameter in future,
reducing the need for resource_registry mappings (although we'll have to
support that for backwards compatibility)
The script used is based directly on 20-os-net-config (from t-i-e
at cf94c5e, we can probably improve this now that we have an error path,
but for this initial commit it's a straight copy other than the changes to
replace o-a-c for rendering the json config file.
Co-Authored-By: Steven Hardy <shardy@redhat.com>
Change-Id: I0ed08332cfc49a579de2e83960f0d8047690b97a
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James Slagle
Dan Prince