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calico_cni_ipam_test.go
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calico_cni_ipam_test.go
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package main_test
import (
"fmt"
"os"
. "github.com/onsi/ginkgo"
. "github.com/onsi/ginkgo/extensions/table"
. "github.com/onsi/gomega"
"github.com/projectcalico/cni-plugin/testutils"
client "github.com/projectcalico/libcalico-go/lib/clientv2"
)
var plugin = "calico-ipam"
var _ = Describe("Calico IPAM Tests", func() {
cniVersion := os.Getenv("CNI_SPEC_VERSION")
calicoClient, _ := client.NewFromEnv()
BeforeEach(func() {
testutils.WipeEtcd()
testutils.MustCreateNewIPPool(calicoClient, "192.168.0.0/16", false, false, true)
testutils.MustCreateNewIPPool(calicoClient, "fd80:24e2:f998:72d6::/64", false, false, true)
})
Describe("Run IPAM plugin", func() {
Context("Do it", func() {
DescribeTable("Request different numbers of IP addresses",
func(expectedIPv4, expectedIPv6 bool, netconf string) {
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "", cniVersion)
var ip4Mask, ip6Mask string
for _, ip := range result.IPs {
if ip.Version == "4" {
ip4Mask = ip.Address.Mask.String()
} else if ip.Version == "6" {
ip6Mask = ip.Address.Mask.String()
}
}
if expectedIPv4 {
Expect(ip4Mask).Should(Equal("ffffffff"))
}
if expectedIPv6 {
Expect(ip6Mask).Should(Equal("ffffffffffffffffffffffffffffffff"))
}
_, _, exitCode := testutils.RunIPAMPlugin(netconf, "DEL", "", cniVersion)
Expect(exitCode).Should(Equal(0))
},
Entry("IPAM with no configuration", true, false, fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"log_level": "debug",
"datastore_type": "%s",
"ipam": {
"type": "%s"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)),
Entry("IPAM with IPv4 (explicit)", true, false, fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "true"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)),
Entry("IPAM with IPv6 only", false, true, fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "false",
"assign_ipv6": "true"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)),
Entry("IPAM with IPv4 and IPv6", true, true, fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"log_level": "debug",
"ipam": {
"type": "%s",
"assign_ipv4": "true",
"assign_ipv6": "true"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)),
)
})
})
Describe("Run IPAM plugin - Verify IP Pools", func() {
Context("Pass valid pools", func() {
It("Uses the ipv4 pool", func() {
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "true",
"ipv4_pools": [ "192.168.0.0/16" ]
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "", cniVersion)
Expect(result.IPs[0].Address.IP.String()).Should(HavePrefix("192.168."))
})
})
Context("Pass more than one pool", func() {
It("Uses one of the ipv4 pools", func() {
testutils.MustCreateNewIPPool(calicoClient, "192.169.1.0/24", false, false, true)
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "true",
"ipv4_pools": [ "192.169.1.0/24", "192.168.0.0/16" ]
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "", cniVersion)
Expect(result.IPs[0].Address.IP.String()).Should(Or(HavePrefix("192.168."), HavePrefix("192.169.1")))
})
})
Context("Pass an invalid pool", func() {
It("fails to get an IP", func() {
// Put the bogus pool last in the array
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "true",
"ipv4_pools": [ "192.168.0.0/16", "192.169.1.0/24" ]
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
_, err, _ := testutils.RunIPAMPlugin(netconf, "ADD", "", cniVersion)
Expect(err.Msg).Should(ContainSubstring("192.169.1.0/24) does not exist"))
})
It("fails to get an IP", func() {
// Put the bogus pool first in the array
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s",
"assign_ipv4": "true",
"ipv4_pools": [ "192.168.0.0/16", "192.169.1.0/24" ]
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
_, err, _ := testutils.RunIPAMPlugin(netconf, "ADD", "", cniVersion)
Expect(err.Msg).Should(ContainSubstring("192.169.1.0/24) does not exist"))
})
})
})
Describe("Run IPAM plugin", func() {
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
Context("Pass explicit IP address", func() {
It("Return the expected IP", func() {
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "IP=192.168.123.123", cniVersion)
Expect(len(result.IPs)).Should(Equal(1))
Expect(result.IPs[0].Address.String()).Should(Equal("192.168.123.123/32"))
})
It("Return the expected IP twice after deleting in the middle", func() {
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "IP=192.168.123.123", cniVersion)
Expect(len(result.IPs)).Should(Equal(1))
Expect(result.IPs[0].Address.String()).Should(Equal("192.168.123.123/32"))
_, _, _ = testutils.RunIPAMPlugin(netconf, "DEL", "IP=192.168.123.123", cniVersion)
result, _, _ = testutils.RunIPAMPlugin(netconf, "ADD", "IP=192.168.123.123", cniVersion)
Expect(len(result.IPs)).Should(Equal(1))
Expect(result.IPs[0].Address.String()).Should(Equal("192.168.123.123/32"))
})
It("Doesn't allow an explicit IP to be assigned twice", func() {
result, _, _ := testutils.RunIPAMPlugin(netconf, "ADD", "IP=192.168.123.123", cniVersion)
Expect(len(result.IPs)).Should(Equal(1))
Expect(result.IPs[0].Address.String()).Should(Equal("192.168.123.123/32"))
result, _, exitCode := testutils.RunIPAMPlugin(netconf, "ADD", "IP=192.168.123.123", cniVersion)
Expect(exitCode).Should(BeNumerically(">", 0))
})
})
})
Describe("Run IPAM DEL", func() {
netconf := fmt.Sprintf(`
{
"cniVersion": "%s",
"name": "net1",
"type": "calico",
"etcd_endpoints": "http://%s:2379",
"datastore_type": "%s",
"ipam": {
"type": "%s"
}
}`, cniVersion, os.Getenv("ETCD_IP"), os.Getenv("DATASTORE_TYPE"), plugin)
It("should exit successfully even if no address exists", func() {
_, _, exitCode := testutils.RunIPAMPlugin(netconf, "DEL", "IP=192.168.123.123", cniVersion)
Expect(exitCode).Should(Equal(0))
})
})
})