Building runC on LFS

Today I receive a email from docker news about runC, seems to be a new way to run containers, In readme it's just a make, but it's never so simple on a LFS.

$GOPATH not set:

$ make
go get github.com/tools/godep
package github.com/tools/godep: cannot download, $GOPATH not set. For more details see: go help gopath
make: ** [all] Erro 1
 

Easily set by $PWD, but

$ GOPATH=$PWD make
go get github.com/tools/godep
godep go build -o runc .
make: godep: Command not found
make: *** [all] Error 127
 

anyway, the previous command showed us from where godep command came and that go tried to get it, so where is it?

$ find -name godep
./src/github.com/tools/godep
./bin/godep

then the problem is only path.

$ PATH=$PATH:bin GOPATH=$PWD make
go get github.com/tools/godep
godep go build -o runc .

or just copy bin/godep to /usr/bin.

sudo cp -v bin/godep runc /usr/bin
Password:
“bin/godep” -> “/usr/bin/godep”
“runc” -> “/usr/bin/runc”
$ runc
FATA[0000] runc should be run as root
$ sudo runc
JSON specification file for container.json not found

Seems to be ok, now let's learn something new. But I'll do it in another post.