github.com/coreos/mantle@v0.13.0/kola/tests/packages/ipvsadm.go (about)

     1  // Copyright 2017 CoreOS, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package packages
    16  
    17  import (
    18  	"bytes"
    19  	"fmt"
    20  
    21  	"github.com/coreos/mantle/kola/cluster"
    22  )
    23  
    24  func ipvsadm(c cluster.TestCluster) {
    25  	m := c.Machines()[0]
    26  
    27  	// Test it runs at all
    28  	out := c.MustSSH(m, "sudo ipvsadm")
    29  	if !bytes.Contains(out, []byte(`IP Virtual Server version`)) {
    30  		c.Fatalf("unexpected ipvsadm output: %v", string(out))
    31  	}
    32  
    33  	// Test by using the example from the man page
    34  	cmd := `echo " 
    35  	-A -t 207.175.44.110:80 -s rr
    36  	-a -t 207.175.44.110:80 -r 192.168.10.1:80 -m
    37  	-a -t 207.175.44.110:80 -r 192.168.10.2:80 -m
    38  	-a -t 207.175.44.110:80 -r 192.168.10.3:80 -m
    39  	-a -t 207.175.44.110:80 -r 192.168.10.4:80 -m
    40  	-a -t 207.175.44.110:80 -r 192.168.10.5:80 -m
    41  	" | sudo ipvsadm -R`
    42  	c.MustSSH(m, cmd)
    43  
    44  	// Test we can read back what we just did
    45  	out = c.MustSSH(m, "sudo ipvsadm -Ln")
    46  	if !bytes.Contains(out, []byte(`TCP  207.175.44.110:80 rr`)) {
    47  		c.Fatalf("could not create virtual service %v", string(out))
    48  	}
    49  	for i := 1; i <= 5; i++ {
    50  		ip := []byte(fmt.Sprintf("-> 192.168.10.%d:80", i))
    51  		if !bytes.Contains(out, ip) {
    52  			c.Fatalf("did not add real service %v", string(ip))
    53  		}
    54  	}
    55  
    56  	// Test we can delete the service
    57  	c.MustSSH(m, "sudo ipvsadm -D -t 207.175.44.110:80")
    58  
    59  	// Ensure it was really deleted
    60  	out = c.MustSSH(m, "sudo ipvsadm -Ln")
    61  	if bytes.Contains(out, []byte(`TCP 207.175.44.110:80 rr`)) {
    62  		c.Fatalf("could not delete virtual service")
    63  	}
    64  }