[MyFirstApp] Gophercloud library migration
Migrating from rackspace/gophercloud to gophercloud/gophercloud library. Change-Id: Ia72a4c548e23b4225b788520d924be8e04ce5c6f
This commit is contained in:
Marcela Bonell
parent
f03fcbdc62
commit
ef14eaaf5e
@ -2,38 +2,44 @@ package main
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import (
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"fmt"
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"github.com/gophercloud/gophercloud"
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"github.com/gophercloud/gophercloud/openstack"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/floatingips"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/keypairs"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/secgroups"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/flavors"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/images"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
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"io/ioutil"
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"github.com/rackspace/gophercloud"
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"github.com/rackspace/gophercloud/openstack"
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"github.com/rackspace/gophercloud/openstack/compute/v2/flavors"
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"github.com/rackspace/gophercloud/openstack/compute/v2/images"
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"github.com/rackspace/gophercloud/openstack/compute/v2/servers"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/floatingip"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/keypairs"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/secgroups"
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"github.com/rackspace/gophercloud/openstack/networking/v2/networks"
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"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/external"
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"os"
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)
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func main() {
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// step-1
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var authUsername string = "your_auth_username"
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var authPassword string = "your_auth_password"
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var authUrl string = "http://controller:5000"
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var projectName string = "your_project_id"
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var regionName string = "your_region_name"
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authOpts := gophercloud.AuthOptions{
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IdentityEndpoint: authUrl,
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Username: authUsername,
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Password: authPassword,
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TenantID: projectName,
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// step-1
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authOpts, err := openstack.AuthOptionsFromEnv()
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if err != nil {
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fmt.Println(err)
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return
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}
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provider, _ := openstack.AuthenticatedClient(authOpts)
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client, _ := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
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provider, err := openstack.AuthenticatedClient(authOpts)
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if err != nil {
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fmt.Println(err)
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return
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}
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var regionName = os.Getenv("OS_REGION_NAME")
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client, err := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
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Region: regionName,
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Type: "computev21",
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})
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if err != nil {
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fmt.Println(err)
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return
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}
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// step-2
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pager := images.ListDetail(client, images.ListOpts{})
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@ -59,11 +65,15 @@ func main() {
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// step-6
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instanceName := "testing"
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testingInstance, _ := servers.Create(client, servers.CreateOpts{
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testingInstance, err := servers.Create(client, servers.CreateOpts{
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Name: instanceName,
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ImageRef: imageID,
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FlavorRef: flavorID,
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}).Extract()
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(testingInstance)
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// step-7
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@ -155,8 +165,7 @@ func main() {
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// step-11
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userData := `#!/usr/bin/env bash
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curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
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-i faafo -i messaging -r api -r worker -r demo
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`
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-i faafo -i messaging -r api -r worker -r demo`
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// step-12
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fmt.Println("Checking for existing instance...")
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@ -184,10 +193,14 @@ curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.
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SecurityGroups: []string{securityGroupName},
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UserData: []byte(userData),
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}
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testingInstance, _ = servers.Create(client, keypairs.CreateOptsExt{
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testingInstance, err = servers.Create(client, keypairs.CreateOptsExt{
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CreateOptsBuilder: opts,
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KeyName: keyPairName,
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}).Extract()
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if err != nil {
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fmt.Println(err)
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return
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}
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}
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servers.WaitForStatus(client, testingInstance.ID, "ACTIVE", 300)
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@ -247,9 +260,9 @@ curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.
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// step-15
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fmt.Println("Checking for unused Floating IP...")
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var unusedFloatingIP string
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pager = floatingip.List(client)
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pager = floatingips.List(client)
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page, _ = pager.AllPages()
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floatingIPList, _ := floatingip.ExtractFloatingIPs(page)
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floatingIPList, _ := floatingips.ExtractFloatingIPs(page)
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for _, ip := range floatingIPList {
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if ip.InstanceID == "" {
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unusedFloatingIP = ip.IP
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@ -269,7 +282,7 @@ curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.
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continue
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}
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fmt.Println("Allocating new Floating IP from pool: " + pool.Name)
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f, _ := floatingip.Create(client, floatingip.CreateOpts{Pool: pool.Name}).Extract()
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f, _ := floatingips.Create(client, floatingips.CreateOpts{Pool: pool.Name}).Extract()
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unusedFloatingIP = f.IP
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}
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@ -277,7 +290,10 @@ curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.
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if len(publicIP) != 0 {
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fmt.Println("Instance " + testingInstance.Name + " already has a public ip. Skipping attachment.")
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} else {
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floatingip.Associate(client, testingInstance.ID, unusedFloatingIP)
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opts := floatingips.AssociateOpts{
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FloatingIP: unusedFloatingIP,
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}
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floatingips.AssociateInstance(client, testingInstance.ID, opts)
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}
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// step-17
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@ -33,3 +33,24 @@ Specify a network during instance build
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image=image_id,
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flavor=flavor_id,
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network=network_id)
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.. only:: gophercloud
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Add the option Networks and send its id to attach the instance to:
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.. code-block:: go
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opts := servers.CreateOpts {
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Name: instanceName,
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ImageRef: image.ID,
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FlavorRef: flavor.ID,
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SecurityGroups: []string{securityGroupName},
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UserData: []byte(userData),
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Networks: []servers.Network{servers.Network{UUID: networkID}},
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}
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testingInstance, _ = servers.Create(client, keypairs.CreateOptsExt {
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CreateOptsBuilder: opts,
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KeyName: keyPairName,
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}).Extract()
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@ -97,9 +97,9 @@ and toolkits with the OpenStack cloud:
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Use it to write C++ or C# code for Microsoft applications.
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- https://www.nuget.org/packages/openstack.net
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* - Go
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- `gophercloud <https://github.com/rackspace/gophercloud>`_
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- `gophercloud <https://github.com/gophercloud/gophercloud>`_
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- A go-based SDK.
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Use it with multiple clouds.
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Use it to write Golang code that works with OpenStack clouds.
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- http://gophercloud.io/
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For a list of available SDKs, see `Software Development Kits <https://wiki.openstack.org/wiki/SDKs>`_.
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@ -232,7 +232,7 @@ To interact with the cloud, you must also have
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.. only:: gophercloud
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`a recent version of gophercloud installed <https://godoc.org/github.com/rackspace/gophercloud>`_
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`a recent version of gophercloud installed <https://godoc.org/github.com/gophercloud/gophercloud>`_
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Obtain the following information from your cloud provider:
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@ -383,14 +383,14 @@ to run code snippets in your language of choice.
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.. only:: gophercloud
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To try it, add the following code to go file
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Use environment variables to set your cloud credentials
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.. literalinclude:: ../samples/gophercloud/getting_started.go
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:language: go
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:start-after: step-1
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:end-before: step-2
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.. note:: The client object accesses the Compute v2.0 service,
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.. note:: The client object accesses the Compute v2.0 service and type v2.1,
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so that version is in this tutorial.
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Flavors and images
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