(#25) Add troubleshooting Travis guide

README.md

@@ -160,4 +160,27 @@ if err != nil {
 	return fmt.Errorf("Could not run compose file: %v - %v", composeFilePaths, err)
 }
 return nil
-```
+```
+
+## Troubleshooting Travis
+
+If you want to reproduce a Travis build locally, please follow this instructions to spin up a Travis build agent locally:
+```shell
+export BUILDID="build-testcontainers"
+export INSTANCE="travisci/ci-sardonyx:packer-1564753982-0c06deb6"
+docker run --name $BUILDID -w /root/go/src/github.com/testcontainers/testcontainers-go -v /Users/mdelapenya/sourcecode/src/github.com/mdelapenya/testcontainers-go:/root/go/src/github.com/testcontainers/testcontainers-go -v /var/run/docker.sock:/var/run/docker.sock -dit $INSTANCE /sbin/init
+```
+
+Once the container has been created, enter it (`docker exec -ti $BUILDID bash`) and reproduce Travis steps:
+
+```shell
+eval "$(gimme 1.11.4)"
+export GO111MODULE=on
+export GOPATH="/root/go"
+export PATH="$GOPATH/bin:$PATH"
+go get gotest.tools/gotestsum
+go mod tidy
+go fmt ./...
+go vet ./...
+gotestsum --format short-verbose ./...
+```