// Print a Cloudformation template to stdout.
func stackTemplate(c *cli.Context) {
stackName := c.Args().First()
if c.String("region") != "" {
stack.Region = c.String("region")
}
if stackName == "" {
os.Stdout.Write(stack.DefaultGalaxyTemplate())
return
}
if c.String("region") != "" {
stack.Region = c.String("region")
}
stackTmpl, err := stack.GetTemplate(stackName)
if err != nil {
if err, ok := err.(*aws.Error); ok {
if err.Code == "ValidationError" && strings.Contains(err.Message, "does not exist") {
log.Fatalf("ERROR: Stack '%s' does not exist", stackName)
}
}
log.Fatal(err)
}
if _, err := os.Stdout.Write(stackTmpl); err != nil {
log.Fatal(err)
}
}
// update the base stack
func stackUpdate(c *cli.Context) {
var stackTmpl []byte
var err error
stackName := c.Args().First()
if stackName == "" {
log.Fatal("ERROR: stack name required")
}
if c.String("region") != "" {
stack.Region = c.String("region")
}
params := make(map[string]string)
if p := c.String("parameters"); p != "" {
paramJSON, err := jsonFromArg(p)
if err != nil {
log.Fatal("ERROR: decoding parameters:", err)
}
err = json.Unmarshal(paramJSON, ¶ms)
if err != nil {
log.Fatal(err)
}
}
template := c.String("template")
if template != "" {
stackTmpl, err = jsonFromArg(template)
if err != nil {
log.Fatalf("ERROR: %s", err)
}
}
if policy := c.String("policy"); policy != "" {
policyJSON, err := jsonFromArg(policy)
if err != nil {
log.Fatal("policy error:", err)
}
params["StackPolicyDuringUpdateBody"] = string(policyJSON)
}
if len(stackTmpl) == 0 {
// get the current running template
stackTmpl, err = stack.GetTemplate(stackName)
if err != nil {
log.Fatal(err)
}
}
// this reads the Parameters supplied for our current stack for us
shared := sharedResources(c, stackName)
// add any missing parameters to our
for key, val := range shared.Parameters {
if params[key] == "" {
params[key] = val
}
}
p, _ := json.MarshalIndent(params, "", " ")
ok := promptValue(fmt.Sprintf("\nUpdate the [%s] stack with:\n%s\nAccept?", stackName, string(p)), "n")
switch strings.ToLower(ok) {
case "y", "yes":
_, err = stack.Update(stackName, stackTmpl, params)
if err != nil {
log.Fatal(err)
}
log.Println("Updating stack:", stackName)
default:
log.Fatal("aborted")
}
}
