/
cluster_role.go
149 lines (117 loc) · 4.26 KB
/
cluster_role.go
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package main
import (
"fmt"
"github.com/spf13/cobra"
"github.com/canonical/lxd/shared"
cli "github.com/canonical/lxd/shared/cmd"
"github.com/canonical/lxd/shared/i18n"
)
type cmdClusterRole struct {
global *cmdGlobal
cluster *cmdCluster
}
// It uses the cmdGlobal, cmdCluster, and cmdClusterRole structs for context and operation.
func (c *cmdClusterRole) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("role")
cmd.Short = i18n.G("Manage cluster roles")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(`Manage cluster roles`))
// Add
clusterRoleAddCmd := cmdClusterRoleAdd{global: c.global, cluster: c.cluster, clusterRole: c}
cmd.AddCommand(clusterRoleAddCmd.Command())
// Remove
clusterRoleRemoveCmd := cmdClusterRoleRemove{global: c.global, cluster: c.cluster, clusterRole: c}
cmd.AddCommand(clusterRoleRemoveCmd.Command())
// Workaround for subcommand usage errors. See: https://github.com/spf13/cobra/issues/706
cmd.Args = cobra.NoArgs
cmd.Run = func(cmd *cobra.Command, args []string) { _ = cmd.Usage() }
return cmd
}
type cmdClusterRoleAdd struct {
global *cmdGlobal
cluster *cmdCluster
clusterRole *cmdClusterRole
}
// Setting up the usage, short description, and long description of the command, as well as its RunE method.
func (c *cmdClusterRoleAdd) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("add", i18n.G("[<remote>:]<member> <role[,role...]>"))
cmd.Short = i18n.G("Add roles to a cluster member")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Add roles to a cluster member`))
cmd.RunE = c.Run
return cmd
}
// It checks and parses input arguments, verifies role assignment, and updates the member's roles.
func (c *cmdClusterRoleAdd) Run(cmd *cobra.Command, args []string) error {
exit, err := c.global.CheckArgs(cmd, args, 2, 2)
if exit {
return err
}
resources, err := c.global.ParseServers(args[0])
if err != nil {
return err
}
resource := resources[0]
if resource.name == "" {
return fmt.Errorf(i18n.G("Missing cluster member name"))
}
// Extract the current value
member, etag, err := resource.server.GetClusterMember(resource.name)
if err != nil {
return err
}
memberWritable := member.Writable()
newRoles := shared.SplitNTrimSpace(args[1], ",", -1, false)
for _, newRole := range newRoles {
if shared.ValueInSlice(newRole, memberWritable.Roles) {
return fmt.Errorf(i18n.G("Member %q already has role %q"), resource.name, newRole)
}
}
memberWritable.Roles = append(memberWritable.Roles, newRoles...)
return resource.server.UpdateClusterMember(resource.name, memberWritable, etag)
}
type cmdClusterRoleRemove struct {
global *cmdGlobal
cluster *cmdCluster
clusterRole *cmdClusterRole
}
// Removing the roles from a cluster member, setting up usage, descriptions, and the RunE method.
func (c *cmdClusterRoleRemove) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("remove", i18n.G("[<remote>:]<member> <role[,role...]>"))
cmd.Short = i18n.G("Remove roles from a cluster member")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Remove roles from a cluster member`))
cmd.RunE = c.Run
return cmd
}
// Run executes the removal of specified roles from a cluster member, checking inputs, validating role assignment, and updating the member's roles.
func (c *cmdClusterRoleRemove) Run(cmd *cobra.Command, args []string) error {
exit, err := c.global.CheckArgs(cmd, args, 2, 2)
if exit {
return err
}
resources, err := c.global.ParseServers(args[0])
if err != nil {
return err
}
resource := resources[0]
if resource.name == "" {
return fmt.Errorf(i18n.G("Missing cluster member name"))
}
// Extract the current value
member, etag, err := resource.server.GetClusterMember(resource.name)
if err != nil {
return err
}
memberWritable := member.Writable()
rolesToRemove := shared.SplitNTrimSpace(args[1], ",", -1, false)
for _, roleToRemove := range rolesToRemove {
if !shared.ValueInSlice(roleToRemove, memberWritable.Roles) {
return fmt.Errorf(i18n.G("Member %q does not have role %q"), resource.name, roleToRemove)
}
}
memberWritable.Roles = shared.RemoveElementsFromSlice(memberWritable.Roles, rolesToRemove...)
return resource.server.UpdateClusterMember(resource.name, memberWritable, etag)
}