// Update an existing Pool Stack
func stackUpdatePool(c *cli.Context) {
ensureEnvArg(c)
ensurePoolArg(c)
if c.String("region") != "" {
stack.Region = c.String("region")
}
poolName := utils.GalaxyPool(c)
baseStack := getBase(c)
poolEnv := utils.GalaxyEnv(c)
stackName := fmt.Sprintf("%s-%s-%s", baseStack, poolEnv, poolName)
pool, err := stack.GetPool(stackName)
if err != nil {
log.Fatal(err)
}
options := make(map[string]string)
if policy := c.String("policy"); policy != "" {
policyJSON, err := jsonFromArg(policy)
if err != nil {
log.Fatal("policy error:", err)
}
options["StackPolicyDuringUpdateBody"] = string(policyJSON)
}
resources := sharedResources(c, baseStack)
asg := pool.ASG()
if asg == nil {
log.Fatal("missing ASG")
}
if c.Int("desired-size") > 0 {
asg.Properties.DesiredCapacity = c.Int("desired-size")
}
if c.Int("min-size") > 0 {
asg.Properties.MinSize = c.Int("min-size")
}
if c.Int("max-size") > 0 {
asg.Properties.MaxSize = c.Int("max-size")
}
if c.Bool("auto-update") {
// note that the max pause is only PT5M30S
asg.SetASGUpdatePolicy(c.Int("update-min"), c.Int("update-batch"), c.Duration("update-pause"))
}
numZones := c.Int("availability-zones")
if numZones == 0 {
numZones = len(asg.Properties.VPCZoneIdentifier)
}
// start with the current settings
subnetIDs := []string{}
azIDs := []string{}
// only update the subnets/AZs if we changed the count
if len(asg.Properties.VPCZoneIdentifier) != numZones {
subnets := resources.Subnets
if numZones <= len(subnets) {
subnets = subnets[:numZones]
} else {
log.Fatal("ERROR: cannot run in %d zones, only %d available.", numZones, len(subnets))
}
for _, sn := range subnets {
subnetIDs = append(subnetIDs, sn.ID)
azIDs = append(azIDs, sn.AvailabilityZone)
}
asg.Properties.VPCZoneIdentifier = subnetIDs
asg.Properties.AvailabilityZones = azIDs
}
elb := pool.ELB()
sslCert := ""
if cert := c.String("ssl-cert"); cert != "" {
sslCert = resources.ServerCerts[cert]
if sslCert == "" {
log.Fatalf("Could not find certificate '%s'", cert)
}
}
httpPort := c.Int("http-port")
if (sslCert != "" || httpPort > 0) && elb == nil {
log.Fatal("ERROR: Pool does not have an ELB")
}
// we can set the default now that we've verified that elb can be nil
if httpPort == 0 {
httpPort = 80
}
if elb != nil {
certAdded := false
for _, l := range elb.Properties.Listeners {
if sslCert != "" && l.Protocol == "HTTPS" {
l.SSLCertificateId = sslCert
certAdded = true
}
if httpPort > 0 {
l.InstancePort = httpPort
}
}
// the elb needs a cert, but doesn't have an https listener
if sslCert != "" && !certAdded {
elb.AddListener(443, "HTTPS", httpPort, "HTTP", sslCert, nil)
}
healthCheck := c.String("http-health-check")
if healthCheck != "" && healthCheck != elb.Properties.HealthCheck.Target {
elb.Properties.HealthCheck.Target = healthCheck
}
// always make sure the ELB is in the same subnets as the ASG
elb.Properties.Subnets = asg.Properties.VPCZoneIdentifier
}
lc := pool.LC()
if amiID := c.String("ami"); amiID != "" {
lc.Properties.ImageId = amiID
}
if insType := c.String("instance-type"); insType != "" {
lc.Properties.InstanceType = insType
}
// add autoscaling if it's required
setCPUAutoScale(c, pool)
poolTmpl, err := json.MarshalIndent(pool, "", " ")
if err != nil {
log.Fatal(err)
}
if c.Bool("print") {
fmt.Println(string(poolTmpl))
return
}
log.Println("Updating stack:", stackName)
if _, err := stack.Update(stackName, poolTmpl, options); err != nil {
log.Fatal(err)
}
// do we want to wait on this by default?
if err := stack.Wait(stackName, 5*time.Minute); err != nil {
log.Fatal(err)
}
log.Println("UpdateStack complete")
}
func stackCreatePool(c *cli.Context) {
var err error
ensureEnvArg(c)
ensurePoolArg(c)
if c.String("region") != "" {
stack.Region = c.String("region")
}
poolName := utils.GalaxyPool(c)
baseStack := getBase(c)
poolEnv := utils.GalaxyEnv(c)
stackName := fmt.Sprintf("%s-%s-%s", baseStack, poolEnv, poolName)
pool := stack.NewPool()
// get the resources we need from the base stack
// TODO: this may search for the base stack a second time
resources := sharedResources(c, baseStack)
desiredCap := c.Int("desired-size")
if desiredCap == 0 {
desiredCap = 1
}
numZones := c.Int("availability-zones")
if numZones == 0 {
// default to running one host per zone
numZones = desiredCap
}
minSize := c.Int("min-size")
maxSize := c.Int("max-size")
httpPort := c.Int("http-port")
if httpPort == 0 {
httpPort = 80
}
sslCert := ""
if cert := c.String("ssl-cert"); cert != "" {
sslCert = resources.ServerCerts[cert]
if sslCert == "" {
log.Fatalf("Could not find certificate '%s'", cert)
}
}
// Create our Launch Config
lc := pool.LCTemplate
lcName := "lc" + poolEnv + poolName
if amiID := c.String("ami"); amiID != "" {
lc.Properties.ImageId = amiID
} else {
lc.Properties.ImageId = resources.Parameters["PoolImageId"]
}
if insType := c.String("instance-type"); insType != "" {
lc.Properties.InstanceType = insType
} else {
lc.Properties.InstanceType = resources.Parameters["PoolInstanceType"]
}
if keyName := c.String("keyname"); keyName != "" {
lc.Properties.KeyName = keyName
} else {
lc.Properties.KeyName = resources.Parameters["KeyName"]
}
lc.Properties.IamInstanceProfile = resources.Roles["galaxyInstanceProfile"]
lc.Properties.SecurityGroups = []string{
resources.SecurityGroups["sshSG"],
resources.SecurityGroups["defaultSG"],
}
lc.SetVolumeSize(c.Int("volume-size"))
pool.Resources[lcName] = lc
// Create the Auto Scaling Group
asg := pool.ASGTemplate
asgName := "asg" + poolEnv + poolName
asg.AddTag("Name", fmt.Sprintf("%s-%s-%s", baseStack, poolEnv, poolName), true)
asg.AddTag("env", poolEnv, true)
asg.AddTag("pool", poolName, true)
asg.AddTag("galaxy", "pool", true)
asg.Properties.DesiredCapacity = desiredCap
// Don't always run in all zones
subnets := resources.Subnets
if numZones <= len(subnets) {
subnets = subnets[:numZones]
} else {
log.Fatal("ERROR: cannot run in %d zones, only %d available.", numZones, len(subnets))
}
// break the subnets info into separate subnet and AZ slices for the template
subnetIDs := []string{}
azIDs := []string{}
for _, sn := range subnets {
subnetIDs = append(subnetIDs, sn.ID)
azIDs = append(azIDs, sn.AvailabilityZone)
}
asg.SetLaunchConfiguration(lcName)
asg.Properties.AvailabilityZones = azIDs
asg.Properties.VPCZoneIdentifier = subnetIDs
if maxSize > 0 {
asg.Properties.MaxSize = maxSize
}
if minSize > 0 {
asg.Properties.MinSize = minSize
}
if c.Bool("auto-update") {
asg.SetASGUpdatePolicy(c.Int("update-min"), c.Int("update-batch"), c.Duration("update-pause"))
}
pool.Resources[asgName] = asg
// Optionally create the Elastic Load Balancer
if c.Bool("elb") {
elb := pool.ELBTemplate
elbName := "elb" + poolEnv + poolName
// make sure to add this to the ASG
asg.AddLoadBalancer(elbName)
elb.Properties.Subnets = subnetIDs
elb.Properties.SecurityGroups = []string{
resources.SecurityGroups["webSG"],
resources.SecurityGroups["defaultSG"],
}
elb.Properties.HealthCheck.Target = c.String("http-health-check")
elb.AddListener(80, "HTTP", httpPort, "HTTP", "", nil)
if sslCert != "" {
elb.AddListener(443, "HTTPS", httpPort, "HTTP", sslCert, nil)
}
pool.Resources[elbName] = elb
}
// add autoscaling if it's required
setCPUAutoScale(c, pool)
poolTmpl, err := json.MarshalIndent(pool, "", " ")
if err != nil {
log.Fatal(err)
}
if c.Bool("print") {
fmt.Println(string(poolTmpl))
return
}
opts := make(map[string]string)
opts["tag.env"] = poolEnv
opts["tag.pool"] = poolName
opts["tag.galaxy"] = "pool"
_, err = stack.Create(stackName, poolTmpl, opts)
if err != nil {
log.Fatal(err)
}
log.Println("Creating stack:", stackName)
// do we want to wait on this by default?
if err := stack.Wait(stackName, 5*time.Minute); err != nil {
log.Error(err)
log.Error("CreateStack Failed, attempting to delete")
waitAndDelete(stackName)
return
}
log.Println("CreateStack complete")
}