1. CDT Build/Run/Debug in Container
Jeff Johnston

2. Goals Build/Run/Debug C/C++ applications in Docker Containers
Extend previous Mgd Build Run/Debug Container support
Make support optional via CDT Docker Launch feature
Add support to existing projects via Build Settings
- No new project types required
Tie Build in Container support to Configuration
Support indexing on local host
Start with current Managed Build

3. Design Override Command Launching
Run commands via Linux Tools Docker Tooling
Mount project and working directories
Make source available to Container tools
In the case of remote daemon, copy and copy-back changes
Copy header files from include path back to host
One-time cost (Docker Image headers don't change)
Modify include paths for indexer to cached location
Indexer runs locally and uses cached headers from Image

4. Container Settings Tab

5. Container Settings Enable Container build (default is off)
Use special launcher that uses Docker Tooling
Choose Docker Connection and Image to use
Docker daemon must be running and Connections opened
Docker Image must have needed tools installed
Specify additional directories to mount in Container
Project, Working directory, and Related projects are mounted by default
Include paths from build used to copy back headers

6. Cached Header Management

7. Setting up Docker Image
Can use Dockerfile build or Container commit
To use Container commit, start a base Image (e.g. f26) with /bin/sh command and then start installing needed packages
e.g. dnf install gcc gcc-c++ binutils make gdb-gdbserver
Use Docker Tooling to commit Container as Image
Use this new image for your build/run/debug in Container work

8. Debugging Currently runs gdbserver in Container
Older versions of host gdb may not work (e.g. gdb 6.x)
Gdb works (2013)
On Non-Linux need gdb to support Linux ABI
For example, for Windows, configure gdb:
./configure --host=x86_64-w64-mingw32 --disable-binutils --disable- ld --disable-gold --disable-gas --disable-sim --disable-gprof –enable- targets=x86_64-unknown-linux-gnu
Can specify gdb that handles multiple targets

9. Current Status
Initial ManagedBuild support checked into master branch as of Oct 22/2017
Will be part of Oxgyen.2 release of CDT
Yocto team helping out to support new build model
Docker Tooling updates-docker-nightly-oxygen will contain latest fixes for Oxygen

10. Further Information https://www.docker.com/whatisdocker/
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