Allow to set env variables through the API

docker/docker.go

@@ -262,6 +262,7 @@ type CreateContainerOpts struct {
 	Labels         map[string]string
 	Networks       []string
 	DindVolumeSize string
+	Envs           []string
 }
 
 func (d *docker) ContainerCreate(opts CreateContainerOpts) (err error) {
@@ -269,7 +270,7 @@ func (d *docker) ContainerCreate(opts CreateContainerOpts) (err error) {
 	containerDir := "/opt/pwd"
 	containerCertDir := fmt.Sprintf("%s/certs", containerDir)
 
-	env := []string{fmt.Sprintf("SESSION_ID=%s", opts.SessionId)}
+	env := append([]string{}, fmt.Sprintf("SESSION_ID=%s", opts.SessionId))
 
 	// Write certs to container cert dir
 	if len(opts.ServerCert) > 0 {

provisioner/dind.go

@@ -78,6 +78,7 @@ func (d *DinD) InstanceNew(session *types.Session, conf types.InstanceConfig) (*
 		Privileged:     true,
 		Networks:       []string{session.Id},
 		DindVolumeSize: conf.DindVolumeSize,
+		Envs:           conf.Envs,
 	}
 
 	dockerClient, err := d.factory.GetForSession(session)

pwd/instance_test.go

@@ -171,6 +171,7 @@ func TestInstanceNew_WithNotAllowedImage(t *testing.T) {
 		ServerKey:     nil,
 		CACert:        nil,
 		Privileged:    true,
+		Envs:          []string{"HELLO=WORLD"},
 		Networks:      []string{session.Id},
 	}
 	_d.On("ContainerCreate", expectedContainerOpts).Return(nil)
@@ -178,7 +179,7 @@ func TestInstanceNew_WithNotAllowedImage(t *testing.T) {
 	_s.On("InstancePut", mock.AnythingOfType("*types.Instance")).Return(nil)
 	_e.M.On("Emit", event.INSTANCE_NEW, "aaaabbbbcccc", []interface{}{"aaaabbbb_aaaabbbbcccc", "10.0.0.1", "node1", "ip10-0-0-1-aaaabbbbcccc"}).Return()
 
-	instance, err := p.InstanceNew(session, types.InstanceConfig{ImageName: "redis"})
+	instance, err := p.InstanceNew(session, types.InstanceConfig{ImageName: "redis", Envs: []string{"HELLO=WORLD"}})
 	assert.Nil(t, err)
 
 	assert.Equal(t, expectedInstance, *instance)

pwd/types/instance.go

@@ -39,4 +39,5 @@ type InstanceConfig struct {
 	PlaygroundFQDN string
 	Type           string
 	DindVolumeSize string
+	Envs           []string
 }