fix(certs): auto-install ca retrieved from rancher

Signed-off-by: Zespre Chang <[email protected]>

pkg/cacerts/cacerts.go

@@ -15,6 +15,7 @@ import (
 	"time"
 
 	"github.com/rancher/rancherd/pkg/tpm"
+	"github.com/rancher/system-agent/pkg/applyinator"
 	"github.com/rancher/wrangler/pkg/randomtoken"
 )
 
@@ -161,6 +162,29 @@ func CACerts(server, token string, clusterToken bool) ([]byte, string, error) {
 	return data, hashHex(data), nil
 }
 
+func ToUpdateCACertificatesInstruction() (*applyinator.Instruction, error) {
+	cmd := "update-ca-certificates"
+
+	return &applyinator.Instruction{
+		Name:       "update-ca-certificates",
+		SaveOutput: true,
+		Command:    cmd,
+	}, nil
+}
+
+func ToFile(server, token string) (*applyinator.File, error) {
+	cacert, _, err := CACerts(server, token, true)
+	if err != nil {
+		return nil, err
+	}
+
+	return &applyinator.File{
+		Content:     base64.StdEncoding.EncodeToString(cacert),
+		Path:        "/etc/pki/trust/anchors/additional-ca.pem",
+		Permissions: "0644",
+	}, nil
+}
+
 func hashHex(token []byte) string {
 	hash := sha256.Sum256(token)
 	return hex.EncodeToString(hash[:])

pkg/plan/bootstrap.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/rancher/system-agent/pkg/applyinator"
 
+	"github.com/rancher/rancherd/pkg/cacerts"
 	"github.com/rancher/rancherd/pkg/config"
 	"github.com/rancher/rancherd/pkg/discovery"
 	"github.com/rancher/rancherd/pkg/join"
@@ -50,9 +51,15 @@ func toJoinPlan(cfg *config.Config, dataDir string) (*applyinator.Plan, error) {
 	}
 
 	plan := plan{}
+	if err := plan.addFile(cacerts.ToFile(cfg.Server, cfg.Token)); err != nil {
+		return nil, err
+	}
 	if err := plan.addFile(join.ToScriptFile(cfg, dataDir)); err != nil {
 		return nil, err
 	}
+	if err := plan.addInstruction(cacerts.ToUpdateCACertificatesInstruction()); err != nil {
+		return nil, err
+	}
 	if err := plan.addInstruction(join.ToInstruction(cfg, dataDir)); err != nil {
 		return nil, err
 	}
@@ -202,6 +209,7 @@ func (p *plan) addFiles(cfg *config.Config, dataDir string) error {
 
 	// rancher values.yaml
 	return p.addFile(rancher.ToFile(cfg, dataDir))
+
 }
 
 func (p *plan) addFile(file *applyinator.File, err error) error {