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template_types.go
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template_types.go
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package main
import (
"fmt"
)
// Service represents a Rancher service.
type Service struct {
Name string
Stack string
Kind string // service, loadBalancerService
Vip string
Fqdn string
Ports []ServicePort
Labels LabelMap
Metadata MetadataMap
Containers []Container
}
// Container represents a container belonging to a Rancher Service.
type Container struct {
Name string
Address string
Stack string
Service string
Health string
State string
Labels LabelMap
Host Host
Ports []ServicePort
}
// Host represents a Rancher Host.
type Host struct {
UUID string
Name string
Address string
Hostname string
Labels LabelMap
Containers []Container
}
// Self contains information about the container running this application.
type Self struct {
Stack string
Service string
HostUUID string
}
// ServicePort represents a port exposed by a service
type ServicePort struct {
ExternalIp string
PublicPort string
InternalPort string
Protocol string
}
// LabelMap contains the labels of a service or host.
type LabelMap map[string]string
// Exists returns true if the Labels contain the given key.
func (l LabelMap) Exists(key string) bool {
_, ok := l[key]
return ok
}
// Value returns the value of the given label key.
func (l LabelMap) GetValue(key string, v ...string) string {
if val, ok := l[key]; ok && len(val) > 0 {
return val
}
if len(v) > 0 {
return v[0]
}
return ""
}
// MetadataMap contains the metadata of a service.
type MetadataMap map[string]interface{}
// Exists returns true if the metadata contains the given key.
func (m MetadataMap) Exists(key string) bool {
_, ok := m[key]
return ok
}
// Value returns the value of the given metadata key.
func (m MetadataMap) GetValue(key string, v ...interface{}) interface{} {
if val, ok := m[key]; ok {
return val
}
if len(v) > 0 {
return v[0]
}
return ""
}
//RAP Adding a storage place to enable modifying data inside template loop/conditional structure
type Cell struct{ v interface{} }
func NewCell(v ...interface{}) (*Cell, error) {
switch len(v) {
case 0:
return new(Cell), nil
case 1:
return &Cell{v[0]}, nil
default:
return nil, fmt.Errorf("wrong number of args: want 0 or 1, got %v", len(v))
}
}
func (c *Cell) Set(v interface{}) *Cell { c.v = v; return c }
func (c *Cell) Get() interface{} { return c.v }