clusters.go

 
/*
Copyright © 2019, 2020, 2021, 2022 Red Hat, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/



package
 
commands

Generated documentation is available at: https://pkg.go.dev/github.com/RedHatInsights/insights-operator-cli/commands

Documentation in literate-programming-style is available at: https://redhatinsights.github.io/insights-operator-cli/packages/commands/clusters.html

 


import
 
(

	
"fmt"


	
"github.com/RedHatInsights/insights-operator-cli/restapi"


)

ListOfClusters function displays list of clusters gathered via REST API call to the controller service. Just basic information about clusters are displayed - mainly its internal ID, an official ID, and a name.

 
func
 
ListOfClusters
(
api
 
restapi
.
API
)
 
{

try to read list of clusters and display error if something wrong happens

 
	
clusters
,
 
err
 
:=
 
api
.
ReadListOfClusters
(
)

check for any error

 
	
if
 
err
 
!=
 
nil
 
{

list of clusters operation failed for some reason

 
		
fmt
.
Println
(
colorizer
.
Red
(
ErrorReadingListOfClusters
)
)

		
fmt
.
Println
(
err
)

		
return

	
}

TODO: handle empty list of clusters

list of clusters operation has been successful, let's display them

 
	
fmt
.
Println
(
colorizer
.
Magenta
(
"List of clusters"
)
)

	
fmt
.
Printf
(
"%4s %4s %-s\n"
,
 
"#"
,
 
"ID"
,
 
"Name"
)

	
for
 
i
,
 
cluster
 
:=
 
range
 
clusters
 
{

		
fmt
.
Printf
(
"%4d %4d %-s\n"
,
 
i
,
 
cluster
.
ID
,
 
cluster
.
Name
)

	
}


}

DeleteClusterNoConfirm function deletes all info about selected cluster w/o asking for confirmation of this operation. Usually it function should not be called directly from user interface as some confirmation is required.

 
func
 
DeleteClusterNoConfirm
(
api
 
restapi
.
API
,
 
clusterID
 
string
)
 
{

	
DeleteCluster
(
api
,
 
clusterID
,
 
false
)


}

DeleteCluster function deletes all info about selected cluster from database. Before this operation is performed, user is ask if it is really required (this additional operation can be disabled by command line option).

 
func
 
DeleteCluster
(
api
 
restapi
.
API
,
 
clusterID
 
string
,
 
askForConfirmation
 
bool
)
 
{

	
if
 
askForConfirmation
 
{

the client has been configured to ask for additional confirmation display the confirmation dialog

 
		
if
 
!
ProceedQuestion
(
"All cluster configurations will be deleted"
)
 
{

if answer is no, simply skip the rest of this function

 
			
return

		
}

	
}

try to delete cluster and display error if something wrong happens

 
	
err
 
:=
 
api
.
DeleteCluster
(
clusterID
)

check for any error

 
	
if
 
err
 
!=
 
nil
 
{

error has been detected during REST API call or during DB operation

 
		
fmt
.
Println
(
colorizer
.
Red
(
ErrorCommunicationWithServiceErrorMessage
)
)

		
fmt
.
Println
(
err
)

		
return

	
}

everything's ok, cluster has been deleted

 
	
fmt
.
Println
(
colorizer
.
Blue
(
"Cluster "
+
clusterID
+
" has been"
)
,
 
colorizer
.
Red
(
deleted
)
)


}

AddCluster function inserts new cluster info into the database via REST API call to insights operator controller service.

 
func
 
AddCluster
(
api
 
restapi
.
API
,
 
clusterName
 
string
)
 
{

try to add new cluster and display error if something wrong happens

 
	
err
 
:=
 
api
.
AddCluster
(
clusterName
)

check for any error

 
	
if
 
err
 
!=
 
nil
 
{

error has been detected during REST API call or during DB operation

 
		
fmt
.
Println
(
colorizer
.
Red
(
ErrorCommunicationWithServiceErrorMessage
)
)

		
fmt
.
Println
(
err
)

		
return

	
}

everything's ok, cluster has been added

 
	
fmt
.
Println
(
colorizer
.
Blue
(
"Cluster "
 
+
 
clusterName
 
+
 
" has been added"
)
)


}