hello go docker
Docker images build with various docker build command flags.
docker images
preconditions
- golang
- modern make
go get github.com/tj/mmake/cmd/mmake - gopherjs
go get -u github.com/gopherjs/gopherjs - gopher-count
go get github.com/steveoc64/gopher-count
build
$ make build
run
$ make run
go build -o mybinary -v ./...
./mybinary
2018/06/23 09:07:25 Server at http://localhost:1234.
6 main ways to build a docker image
$ make build.docker
$ make build.docker-cache
$ make build.dockerbuilder
$ make build.dockerbuilder-cache
$ make build.dockeralpine
$ make build.docker-min
note about ca-certificates
# $ make build.docker-min
# requires ca-certificates.crt file in project directory
# For many Linux distributions,
# you can copy the file from /etc/ssl/certs/ca-certificates.crt :
cp /etc/ssl/certs/ca-certificates.crt .
build.log shows
- docker image build times
- docker image sizes
docker experimental functions
In order to run the squash build commands above, you need to run the docker deamon with experimental functions:
$ cat <> /etc/docker/daemon.json
{
"experimental": true
}
EOT
$ sudo service docker restart
#check result
$ docker version -f '{{.Server.Experimental}}'
true