baremetal: Template RHCOS_IMAGE_URL in startironic.sh

This shouldn't be hard-coded, so instead we replace the URL with the
appropriate data from rhcos.json.

Related: #37

data/data/bootstrap/baremetal/files/usr/local/bin/startironic.sh → data/data/bootstrap/baremetal/files/usr/local/bin/startironic.sh.template

@@ -7,8 +7,8 @@ IRONIC_INSPECTOR_IMAGE=${IRONIC_INSPECTOR_IMAGE:-"quay.io/metal3-io/ironic-inspe
 IPA_DOWNLOADER_IMAGE=${IPA_DOWNLOADER_IMAGE:-"quay.io/metal3-io/ironic-ipa-downloader:master"}
 COREOS_DOWNLOADER_IMAGE=${COREOS_DOWNLOADER_IMAGE:-"quay.io/openshift-metal3/rhcos-downloader:master"}
 
-# FIXME this should be provided by the installer
-RHCOS_IMAGE_URL="https://releases-art-rhcos.svc.ci.openshift.org/art/storage/releases/ootpa/410.8.20190520.0"
+# This image is templated in via the installer pkg/asset/ignition/bootstrap/bootstrap.go
+RHCOS_IMAGE_URL="{{.DeployImage}}"
 
 # First we stop any previously started containers, because ExecStop only runs when the ExecStart process
 # e.g this script is still running, but we exit if *any* of the containers exits unexpectedly

pkg/asset/ignition/bootstrap/bootstrap.go

@@ -26,7 +26,9 @@ import (
 	"github.com/openshift-metalkube/kni-installer/pkg/asset/machines"
 	"github.com/openshift-metalkube/kni-installer/pkg/asset/manifests"
 	"github.com/openshift-metalkube/kni-installer/pkg/asset/tls"
+	"github.com/openshift-metalkube/kni-installer/pkg/rhcos"
 	"github.com/openshift-metalkube/kni-installer/pkg/types"
+	bmtypes "github.com/openshift-metalkube/kni-installer/pkg/types/baremetal"
 )
 
 const (
@@ -42,6 +44,7 @@ type bootstrapTemplateData struct {
 	PullSecret   string
 	ReleaseImage string
 	Proxy        *configv1.ProxyStatus
+	DeployImage  string
 }
 
 // Bootstrap is an asset that generates the ignition config for bootstrap nodes.
@@ -117,6 +120,7 @@ func (a *Bootstrap) Generate(dependencies asset.Parents) error {
 	if err != nil {
 		return errors.Wrap(err, "failed to get bootstrap templates")
 	}
+	logrus.Debugf("SHDEBUG templateData type %T", templateData)
 
 	a.Config = &igntypes.Config{
 		Ignition: igntypes.Ignition{
@@ -208,11 +212,25 @@ func (a *Bootstrap) getTemplateData(installConfig *types.InstallConfig, proxy *c
 		logrus.Debugf("Using internal constant for release image %s", releaseImage)
 	}
 
+	var deployImage string
+	// baremetal requires some additional templateData to download the RHCOS image
+	// so we can deploy the masters with the correct image from rhcos.json
+	if installConfig.Platform.Name() == bmtypes.Name {
+		var err error
+		deployImage, err = rhcos.Baremetal()
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		deployImage = releaseImage
+	}
+
 	return &bootstrapTemplateData{
 		PullSecret:   installConfig.PullSecret,
 		ReleaseImage: releaseImage,
 		EtcdCluster:  strings.Join(etcdEndpoints, ","),
 		Proxy:        &proxy.Status,
+		DeployImage:  deployImage,
 	}, nil
 }
 

pkg/rhcos/baremetal.go

@@ -0,0 +1,23 @@
+package rhcos
+
+import (
+	"context"
+	"net/url"
+
+	"github.com/pkg/errors"
+)
+
+// Baremetal fetches the BaseURI where baremetal images can be downloaded from
+func Baremetal() (string, error) {
+	meta, err := fetchRHCOSBuild(context.TODO())
+	if err != nil {
+		return "", errors.Wrap(err, "failed to fetch RHCOS metadata")
+	}
+
+	base, err := url.Parse(meta.BaseURI)
+	if err != nil {
+		return "", err
+	}
+
+	return base.String(), nil
+}