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requests.go
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package stacks
import (
"errors"
"strings"
"github.com/apcera/libretto/Godeps/_workspace/src/github.com/rackspace/gophercloud"
"github.com/apcera/libretto/Godeps/_workspace/src/github.com/rackspace/gophercloud/pagination"
)
// Rollback is used to specify whether or not a stack can be rolled back.
type Rollback *bool
var (
disable = true
// Disable is used to specify that a stack cannot be rolled back.
Disable Rollback = &disable
enable = false
// Enable is used to specify that a stack can be rolled back.
Enable Rollback = &enable
)
// CreateOptsBuilder is the interface options structs have to satisfy in order
// to be used in the main Create operation in this package. Since many
// extensions decorate or modify the common logic, it is useful for them to
// satisfy a basic interface in order for them to be used.
type CreateOptsBuilder interface {
ToStackCreateMap() (map[string]interface{}, error)
}
// CreateOpts is the common options struct used in this package's Create
// operation.
type CreateOpts struct {
// (REQUIRED) The name of the stack. It must start with an alphabetic character.
Name string
// (REQUIRED) A structure that contains either the template file or url. Call the
// associated methods to extract the information relevant to send in a create request.
TemplateOpts *Template
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, TemplateURL will be ignored
// (OPTIONAL; REQUIRED IF Template IS EMPTY) The URL of the template to instantiate.
// This value is ignored if Template is supplied inline.
TemplateURL string
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, Template will be ignored
// (OPTIONAL; REQUIRED IF TemplateURL IS EMPTY) A template to instantiate. The value
// is a stringified version of the JSON/YAML template. Since the template will likely
// be located in a file, one way to set this variable is by using ioutil.ReadFile:
// import "io/ioutil"
// var opts stacks.CreateOpts
// b, err := ioutil.ReadFile("path/to/you/template/file.json")
// if err != nil {
// // handle error...
// }
// opts.Template = string(b)
Template string
// (OPTIONAL) Enables or disables deletion of all stack resources when a stack
// creation fails. Default is true, meaning all resources are not deleted when
// stack creation fails.
DisableRollback Rollback
// (OPTIONAL) A structure that contains details for the environment of the stack.
EnvironmentOpts *Environment
// (DEPRECATED): Please use EnvironmentOpts to provide Environment data
// (OPTIONAL) A stringified JSON environment for the stack.
Environment string
// (DEPRECATED): Files is automatically determined
// by parsing the template and environment passed as TemplateOpts and
// EnvironmentOpts respectively.
// (OPTIONAL) A map that maps file names to file contents. It can also be used
// to pass provider template contents. Example:
// Files: `{"myfile": "#!/bin/bash\necho 'Hello world' > /root/testfile.txt"}`
Files map[string]interface{}
// (OPTIONAL) User-defined parameters to pass to the template.
Parameters map[string]string
// (OPTIONAL) The timeout for stack creation in minutes.
Timeout int
// (OPTIONAL) A list of tags to assosciate with the Stack
Tags []string
}
// ToStackCreateMap casts a CreateOpts struct to a map.
func (opts CreateOpts) ToStackCreateMap() (map[string]interface{}, error) {
s := make(map[string]interface{})
if opts.Name == "" {
return s, errors.New("Required field 'Name' not provided.")
}
s["stack_name"] = opts.Name
Files := make(map[string]string)
if opts.TemplateOpts == nil {
if opts.Template != "" {
s["template"] = opts.Template
} else if opts.TemplateURL != "" {
s["template_url"] = opts.TemplateURL
} else {
return s, errors.New("Either Template or TemplateURL must be provided.")
}
} else {
if err := opts.TemplateOpts.Parse(); err != nil {
return nil, err
}
if err := opts.TemplateOpts.getFileContents(opts.TemplateOpts.Parsed, ignoreIfTemplate, true); err != nil {
return nil, err
}
opts.TemplateOpts.fixFileRefs()
s["template"] = string(opts.TemplateOpts.Bin)
for k, v := range opts.TemplateOpts.Files {
Files[k] = v
}
}
if opts.DisableRollback != nil {
s["disable_rollback"] = &opts.DisableRollback
}
if opts.EnvironmentOpts != nil {
if err := opts.EnvironmentOpts.Parse(); err != nil {
return nil, err
}
if err := opts.EnvironmentOpts.getRRFileContents(ignoreIfEnvironment); err != nil {
return nil, err
}
opts.EnvironmentOpts.fixFileRefs()
for k, v := range opts.EnvironmentOpts.Files {
Files[k] = v
}
s["environment"] = string(opts.EnvironmentOpts.Bin)
} else if opts.Environment != "" {
s["environment"] = opts.Environment
}
if opts.Files != nil {
s["files"] = opts.Files
} else {
s["files"] = Files
}
if opts.DisableRollback != nil {
s["disable_rollback"] = &opts.DisableRollback
}
if opts.Parameters != nil {
s["parameters"] = opts.Parameters
}
if opts.Timeout != 0 {
s["timeout_mins"] = opts.Timeout
}
if opts.Tags != nil {
s["tags"] = strings.Join(opts.Tags, ",")
}
return s, nil
}
// Create accepts a CreateOpts struct and creates a new stack using the values
// provided.
func Create(c *gophercloud.ServiceClient, opts CreateOptsBuilder) CreateResult {
var res CreateResult
reqBody, err := opts.ToStackCreateMap()
if err != nil {
res.Err = err
return res
}
_, res.Err = c.Post(createURL(c), reqBody, &res.Body, nil)
return res
}
// AdoptOptsBuilder is the interface options structs have to satisfy in order
// to be used in the Adopt function in this package. Since many
// extensions decorate or modify the common logic, it is useful for them to
// satisfy a basic interface in order for them to be used.
type AdoptOptsBuilder interface {
ToStackAdoptMap() (map[string]interface{}, error)
}
// AdoptOpts is the common options struct used in this package's Adopt
// operation.
type AdoptOpts struct {
// (REQUIRED) Existing resources data represented as a string to add to the
// new stack. Data returned by Abandon could be provided as AdoptsStackData.
AdoptStackData string
// (REQUIRED) The name of the stack. It must start with an alphabetic character.
Name string
// (REQUIRED) The timeout for stack creation in minutes.
Timeout int
// (REQUIRED) A structure that contains either the template file or url. Call the
// associated methods to extract the information relevant to send in a create request.
TemplateOpts *Template
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, TemplateURL will be ignored
// (OPTIONAL; REQUIRED IF Template IS EMPTY) The URL of the template to instantiate.
// This value is ignored if Template is supplied inline.
TemplateURL string
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, Template will be ignored
// (OPTIONAL; REQUIRED IF TemplateURL IS EMPTY) A template to instantiate. The value
// is a stringified version of the JSON/YAML template. Since the template will likely
// be located in a file, one way to set this variable is by using ioutil.ReadFile:
// import "io/ioutil"
// var opts stacks.CreateOpts
// b, err := ioutil.ReadFile("path/to/you/template/file.json")
// if err != nil {
// // handle error...
// }
// opts.Template = string(b)
Template string
// (OPTIONAL) Enables or disables deletion of all stack resources when a stack
// creation fails. Default is true, meaning all resources are not deleted when
// stack creation fails.
DisableRollback Rollback
// (OPTIONAL) A structure that contains details for the environment of the stack.
EnvironmentOpts *Environment
// (DEPRECATED): Please use EnvironmentOpts to provide Environment data
// (OPTIONAL) A stringified JSON environment for the stack.
Environment string
// (DEPRECATED): Files is automatically determined
// by parsing the template and environment passed as TemplateOpts and
// EnvironmentOpts respectively.
// (OPTIONAL) A map that maps file names to file contents. It can also be used
// to pass provider template contents. Example:
// Files: `{"myfile": "#!/bin/bash\necho 'Hello world' > /root/testfile.txt"}`
Files map[string]interface{}
// (OPTIONAL) User-defined parameters to pass to the template.
Parameters map[string]string
}
// ToStackAdoptMap casts a CreateOpts struct to a map.
func (opts AdoptOpts) ToStackAdoptMap() (map[string]interface{}, error) {
s := make(map[string]interface{})
if opts.Name == "" {
return s, errors.New("Required field 'Name' not provided.")
}
s["stack_name"] = opts.Name
Files := make(map[string]string)
if opts.AdoptStackData != "" {
s["adopt_stack_data"] = opts.AdoptStackData
} else if opts.TemplateOpts == nil {
if opts.Template != "" {
s["template"] = opts.Template
} else if opts.TemplateURL != "" {
s["template_url"] = opts.TemplateURL
} else {
return s, errors.New("One of AdoptStackData, Template, TemplateURL or TemplateOpts must be provided.")
}
} else {
if err := opts.TemplateOpts.Parse(); err != nil {
return nil, err
}
if err := opts.TemplateOpts.getFileContents(opts.TemplateOpts.Parsed, ignoreIfTemplate, true); err != nil {
return nil, err
}
opts.TemplateOpts.fixFileRefs()
s["template"] = string(opts.TemplateOpts.Bin)
for k, v := range opts.TemplateOpts.Files {
Files[k] = v
}
}
if opts.DisableRollback != nil {
s["disable_rollback"] = &opts.DisableRollback
}
if opts.EnvironmentOpts != nil {
if err := opts.EnvironmentOpts.Parse(); err != nil {
return nil, err
}
if err := opts.EnvironmentOpts.getRRFileContents(ignoreIfEnvironment); err != nil {
return nil, err
}
opts.EnvironmentOpts.fixFileRefs()
for k, v := range opts.EnvironmentOpts.Files {
Files[k] = v
}
s["environment"] = string(opts.EnvironmentOpts.Bin)
} else if opts.Environment != "" {
s["environment"] = opts.Environment
}
if opts.Files != nil {
s["files"] = opts.Files
} else {
s["files"] = Files
}
if opts.Parameters != nil {
s["parameters"] = opts.Parameters
}
if opts.Timeout != 0 {
s["timeout"] = opts.Timeout
}
s["timeout_mins"] = opts.Timeout
return s, nil
}
// Adopt accepts an AdoptOpts struct and creates a new stack using the resources
// from another stack.
func Adopt(c *gophercloud.ServiceClient, opts AdoptOptsBuilder) AdoptResult {
var res AdoptResult
reqBody, err := opts.ToStackAdoptMap()
if err != nil {
res.Err = err
return res
}
_, res.Err = c.Post(adoptURL(c), reqBody, &res.Body, nil)
return res
}
// SortDir is a type for specifying in which direction to sort a list of stacks.
type SortDir string
// SortKey is a type for specifying by which key to sort a list of stacks.
type SortKey string
var (
// SortAsc is used to sort a list of stacks in ascending order.
SortAsc SortDir = "asc"
// SortDesc is used to sort a list of stacks in descending order.
SortDesc SortDir = "desc"
// SortName is used to sort a list of stacks by name.
SortName SortKey = "name"
// SortStatus is used to sort a list of stacks by status.
SortStatus SortKey = "status"
// SortCreatedAt is used to sort a list of stacks by date created.
SortCreatedAt SortKey = "created_at"
// SortUpdatedAt is used to sort a list of stacks by date updated.
SortUpdatedAt SortKey = "updated_at"
)
// ListOptsBuilder allows extensions to add additional parameters to the
// List request.
type ListOptsBuilder interface {
ToStackListQuery() (string, error)
}
// ListOpts allows the filtering and sorting of paginated collections through
// the API. Filtering is achieved by passing in struct field values that map to
// the network attributes you want to see returned. SortKey allows you to sort
// by a particular network attribute. SortDir sets the direction, and is either
// `asc' or `desc'. Marker and Limit are used for pagination.
type ListOpts struct {
Status string `q:"status"`
Name string `q:"name"`
Marker string `q:"marker"`
Limit int `q:"limit"`
SortKey SortKey `q:"sort_keys"`
SortDir SortDir `q:"sort_dir"`
}
// ToStackListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToStackListQuery() (string, error) {
q, err := gophercloud.BuildQueryString(opts)
if err != nil {
return "", err
}
return q.String(), nil
}
// List returns a Pager which allows you to iterate over a collection of
// stacks. It accepts a ListOpts struct, which allows you to filter and sort
// the returned collection for greater efficiency.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := listURL(c)
if opts != nil {
query, err := opts.ToStackListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
createPage := func(r pagination.PageResult) pagination.Page {
return StackPage{pagination.SinglePageBase(r)}
}
return pagination.NewPager(c, url, createPage)
}
// Get retreives a stack based on the stack name and stack ID.
func Get(c *gophercloud.ServiceClient, stackName, stackID string) GetResult {
var res GetResult
_, res.Err = c.Get(getURL(c, stackName, stackID), &res.Body, nil)
return res
}
// UpdateOptsBuilder is the interface options structs have to satisfy in order
// to be used in the Update operation in this package.
type UpdateOptsBuilder interface {
ToStackUpdateMap() (map[string]interface{}, error)
}
// UpdateOpts contains the common options struct used in this package's Update
// operation.
type UpdateOpts struct {
// (REQUIRED) A structure that contains either the template file or url. Call the
// associated methods to extract the information relevant to send in a create request.
TemplateOpts *Template
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, TemplateURL will be ignored
// (OPTIONAL; REQUIRED IF Template IS EMPTY) The URL of the template to instantiate.
// This value is ignored if Template is supplied inline.
TemplateURL string
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, Template will be ignored
// (OPTIONAL; REQUIRED IF TemplateURL IS EMPTY) A template to instantiate. The value
// is a stringified version of the JSON/YAML template. Since the template will likely
// be located in a file, one way to set this variable is by using ioutil.ReadFile:
// import "io/ioutil"
// var opts stacks.CreateOpts
// b, err := ioutil.ReadFile("path/to/you/template/file.json")
// if err != nil {
// // handle error...
// }
// opts.Template = string(b)
Template string
// (OPTIONAL) A structure that contains details for the environment of the stack.
EnvironmentOpts *Environment
// (DEPRECATED): Please use EnvironmentOpts to provide Environment data
// (OPTIONAL) A stringified JSON environment for the stack.
Environment string
// (DEPRECATED): Files is automatically determined
// by parsing the template and environment passed as TemplateOpts and
// EnvironmentOpts respectively.
// (OPTIONAL) A map that maps file names to file contents. It can also be used
// to pass provider template contents. Example:
// Files: `{"myfile": "#!/bin/bash\necho 'Hello world' > /root/testfile.txt"}`
Files map[string]interface{}
// (OPTIONAL) User-defined parameters to pass to the template.
Parameters map[string]string
// (OPTIONAL) The timeout for stack creation in minutes.
Timeout int
// (OPTIONAL) A list of tags to assosciate with the Stack
Tags []string
}
// ToStackUpdateMap casts a CreateOpts struct to a map.
func (opts UpdateOpts) ToStackUpdateMap() (map[string]interface{}, error) {
s := make(map[string]interface{})
Files := make(map[string]string)
if opts.TemplateOpts == nil {
if opts.Template != "" {
s["template"] = opts.Template
} else if opts.TemplateURL != "" {
s["template_url"] = opts.TemplateURL
} else {
return s, errors.New("Either Template or TemplateURL must be provided.")
}
} else {
if err := opts.TemplateOpts.Parse(); err != nil {
return nil, err
}
if err := opts.TemplateOpts.getFileContents(opts.TemplateOpts.Parsed, ignoreIfTemplate, true); err != nil {
return nil, err
}
opts.TemplateOpts.fixFileRefs()
s["template"] = string(opts.TemplateOpts.Bin)
for k, v := range opts.TemplateOpts.Files {
Files[k] = v
}
}
if opts.EnvironmentOpts != nil {
if err := opts.EnvironmentOpts.Parse(); err != nil {
return nil, err
}
if err := opts.EnvironmentOpts.getRRFileContents(ignoreIfEnvironment); err != nil {
return nil, err
}
opts.EnvironmentOpts.fixFileRefs()
for k, v := range opts.EnvironmentOpts.Files {
Files[k] = v
}
s["environment"] = string(opts.EnvironmentOpts.Bin)
} else if opts.Environment != "" {
s["environment"] = opts.Environment
}
if opts.Files != nil {
s["files"] = opts.Files
} else {
s["files"] = Files
}
if opts.Parameters != nil {
s["parameters"] = opts.Parameters
}
if opts.Timeout != 0 {
s["timeout_mins"] = opts.Timeout
}
if opts.Tags != nil {
s["tags"] = strings.Join(opts.Tags, ",")
}
return s, nil
}
// Update accepts an UpdateOpts struct and updates an existing stack using the values
// provided.
func Update(c *gophercloud.ServiceClient, stackName, stackID string, opts UpdateOptsBuilder) UpdateResult {
var res UpdateResult
reqBody, err := opts.ToStackUpdateMap()
if err != nil {
res.Err = err
return res
}
_, res.Err = c.Put(updateURL(c, stackName, stackID), reqBody, nil, nil)
return res
}
// Delete deletes a stack based on the stack name and stack ID.
func Delete(c *gophercloud.ServiceClient, stackName, stackID string) DeleteResult {
var res DeleteResult
_, res.Err = c.Delete(deleteURL(c, stackName, stackID), nil)
return res
}
// PreviewOptsBuilder is the interface options structs have to satisfy in order
// to be used in the Preview operation in this package.
type PreviewOptsBuilder interface {
ToStackPreviewMap() (map[string]interface{}, error)
}
// PreviewOpts contains the common options struct used in this package's Preview
// operation.
type PreviewOpts struct {
// (REQUIRED) The name of the stack. It must start with an alphabetic character.
Name string
// (REQUIRED) The timeout for stack creation in minutes.
Timeout int
// (REQUIRED) A structure that contains either the template file or url. Call the
// associated methods to extract the information relevant to send in a create request.
TemplateOpts *Template
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, TemplateURL will be ignored
// (OPTIONAL; REQUIRED IF Template IS EMPTY) The URL of the template to instantiate.
// This value is ignored if Template is supplied inline.
TemplateURL string
// (DEPRECATED): Please use TemplateOpts for providing the template. If
// TemplateOpts is provided, Template will be ignored
// (OPTIONAL; REQUIRED IF TemplateURL IS EMPTY) A template to instantiate. The value
// is a stringified version of the JSON/YAML template. Since the template will likely
// be located in a file, one way to set this variable is by using ioutil.ReadFile:
// import "io/ioutil"
// var opts stacks.CreateOpts
// b, err := ioutil.ReadFile("path/to/you/template/file.json")
// if err != nil {
// // handle error...
// }
// opts.Template = string(b)
Template string
// (OPTIONAL) Enables or disables deletion of all stack resources when a stack
// creation fails. Default is true, meaning all resources are not deleted when
// stack creation fails.
DisableRollback Rollback
// (OPTIONAL) A structure that contains details for the environment of the stack.
EnvironmentOpts *Environment
// (DEPRECATED): Please use EnvironmentOpts to provide Environment data
// (OPTIONAL) A stringified JSON environment for the stack.
Environment string
// (DEPRECATED): Files is automatically determined
// by parsing the template and environment passed as TemplateOpts and
// EnvironmentOpts respectively.
// (OPTIONAL) A map that maps file names to file contents. It can also be used
// to pass provider template contents. Example:
// Files: `{"myfile": "#!/bin/bash\necho 'Hello world' > /root/testfile.txt"}`
Files map[string]interface{}
// (OPTIONAL) User-defined parameters to pass to the template.
Parameters map[string]string
}
// ToStackPreviewMap casts a PreviewOpts struct to a map.
func (opts PreviewOpts) ToStackPreviewMap() (map[string]interface{}, error) {
s := make(map[string]interface{})
if opts.Name == "" {
return s, errors.New("Required field 'Name' not provided.")
}
s["stack_name"] = opts.Name
Files := make(map[string]string)
if opts.TemplateOpts == nil {
if opts.Template != "" {
s["template"] = opts.Template
} else if opts.TemplateURL != "" {
s["template_url"] = opts.TemplateURL
} else {
return s, errors.New("Either Template or TemplateURL must be provided.")
}
} else {
if err := opts.TemplateOpts.Parse(); err != nil {
return nil, err
}
if err := opts.TemplateOpts.getFileContents(opts.TemplateOpts.Parsed, ignoreIfTemplate, true); err != nil {
return nil, err
}
opts.TemplateOpts.fixFileRefs()
s["template"] = string(opts.TemplateOpts.Bin)
for k, v := range opts.TemplateOpts.Files {
Files[k] = v
}
}
if opts.DisableRollback != nil {
s["disable_rollback"] = &opts.DisableRollback
}
if opts.EnvironmentOpts != nil {
if err := opts.EnvironmentOpts.Parse(); err != nil {
return nil, err
}
if err := opts.EnvironmentOpts.getRRFileContents(ignoreIfEnvironment); err != nil {
return nil, err
}
opts.EnvironmentOpts.fixFileRefs()
for k, v := range opts.EnvironmentOpts.Files {
Files[k] = v
}
s["environment"] = string(opts.EnvironmentOpts.Bin)
} else if opts.Environment != "" {
s["environment"] = opts.Environment
}
if opts.Files != nil {
s["files"] = opts.Files
} else {
s["files"] = Files
}
if opts.Parameters != nil {
s["parameters"] = opts.Parameters
}
if opts.Timeout != 0 {
s["timeout_mins"] = opts.Timeout
}
return s, nil
}
// Preview accepts a PreviewOptsBuilder interface and creates a preview of a stack using the values
// provided.
func Preview(c *gophercloud.ServiceClient, opts PreviewOptsBuilder) PreviewResult {
var res PreviewResult
reqBody, err := opts.ToStackPreviewMap()
if err != nil {
res.Err = err
return res
}
// Send request to API
_, res.Err = c.Post(previewURL(c), reqBody, &res.Body, &gophercloud.RequestOpts{
OkCodes: []int{200},
})
return res
}
// Abandon deletes the stack with the provided stackName and stackID, but leaves its
// resources intact, and returns data describing the stack and its resources.
func Abandon(c *gophercloud.ServiceClient, stackName, stackID string) AbandonResult {
var res AbandonResult
_, res.Err = c.Delete(abandonURL(c, stackName, stackID), &gophercloud.RequestOpts{
JSONResponse: &res.Body,
OkCodes: []int{200},
})
return res
}