Option to build debug version

[ondrej-fabry]

Currently you are building just release version of VPP. However it is often useful to run debug version of VPP. Could you add some option to build debug version as well?

The make target for building debug version is make build and to build .deb packages for debug version you need to run cd build-root && make PLATFORM=vpp TAG=vpp_debug install-deb.

[tiewei]

could you provide more details about what needs to be done ? I couldn't find an example of this command used in vpp-agent or contiv-vpp.
https://github.com/ligato/vpp-agent/blob/pantheon-dev/docker/dev_vpp_agent/Dockerfile#L21-L41
https://github.com/contiv/vpp/blob/master/docker/ubuntu-based/dev/Dockerfile#L23-L40

[ondrej-fabry]

We are not doing it this way at the moment. We were just planning to and since you started working on this we are considering using this as base image in the future.

At the moment we workaround this by executing VPP debug executable right from build-root:
vpp-agent: symlink, supervisord
contiv/vpp: supervisord

The reason why I'm suggesting to add some option to build .deb packages for debug version of VPP is that with this method we can use VPP in debug mode on some production images without compromising source code or whole VPP build.

[ondrej-fabry]

Just to inform you guys.

We just implemented a way to build and run VPP in debug or release mode: ligato/vpp-agent#473

Here's the part of code that builds debug/release mode: https://github.com/ligato/vpp-agent/blob/pantheon-dev/docker/dev_vpp_agent/Dockerfile#L38-L44

Documentation for usage:

• Building - https://github.com/ligato/vpp-agent/blob/pantheon-dev/docker/dev_vpp_agent/README.md#building-vpp-deb-packages-in-debug-or-release-mode
• Running - https://github.com/ligato/vpp-agent/blob/pantheon-dev/docker/dev_vpp_agent/README.md#running-vpp-in-debug-or-release-mode

CC @unclejack