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Added multiClusterCIDR E2E test 

Signed-off-by: Roberto Bonafiglia <roberto.bonafiglia@suse.com>
This commit is contained in:
Roberto Bonafiglia 2023-02-06 17:50:06 +01:00 committed by Roberto Bonafiglia
parent 262cd7de0a
commit 7d2f997b3e
4 changed files with 464 additions and 0 deletions
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14
tests/e2e/amd64_resource_files/cluster-cidr-ipv6.yaml Normal file
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apiVersion: networking.k8s.io/v1alpha1
kind: ClusterCIDR
metadata:
name: new-cidr
spec:
nodeSelector:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- "agent-0"
perNodeHostBits: 64
ipv6: 2001:cafe:248::/56

14
tests/e2e/amd64_resource_files/cluster-cidr.yaml Normal file
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apiVersion: networking.k8s.io/v1alpha1
kind: ClusterCIDR
metadata:
name: new-cidr
spec:
nodeSelector:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- "agent-0"
perNodeHostBits: 8
ipv4: 10.248.0.0/16

155
tests/e2e/multiclustercidr/Vagrantfile vendored Normal file
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ENV['VAGRANT_NO_PARALLEL'] = 'no'
NODE_ROLES = (ENV['E2E_NODE_ROLES'] ||
["server-0", "server-1", "server-2", "agent-0"])
NODE_BOXES = (ENV['E2E_NODE_BOXES'] ||
['generic/ubuntu2004', 'generic/ubuntu2004', 'generic/ubuntu2004', 'generic/ubuntu2004'])
GITHUB_BRANCH = (ENV['E2E_GITHUB_BRANCH'] || "master")
RELEASE_VERSION = (ENV['E2E_RELEASE_VERSION'] || "")
NODE_CPUS = (ENV['E2E_NODE_CPUS'] || 2).to_i
NODE_MEMORY = (ENV['E2E_NODE_MEMORY'] || 2048).to_i
IP_FAMILY = (ENV['E2E_IP_FAMILY'] || "ipv4")
NETWORK4_PREFIX = "10.10.10"
NETWORK6_PREFIX = "fd11:decf:c0ff:ee"
install_type = ""
def provision(vm, roles, role_num, node_num)
vm.box = NODE_BOXES[node_num]
vm.hostname = "#{roles[0]}-#{role_num}"
node_ip4 = "#{NETWORK4_PREFIX}.#{100+node_num}"
node_ip6 = "#{NETWORK6_PREFIX}::#{10+node_num}"
node_ip6_gw = "#{NETWORK6_PREFIX}::1"
# Only works with libvirt, which allows IPv4 + IPv6 on a single network/interface
vm.network "private_network",
:ip => node_ip4,
:netmask => "255.255.255.0",
:libvirt__dhcp_enabled => false,
:libvirt__forward_mode => "none",
:libvirt__guest_ipv6 => "yes",
:libvirt__ipv6_address => "#{NETWORK6_PREFIX}::1",
:libvirt__ipv6_prefix => "64"
scripts_location = Dir.exists?("./scripts") ? "./scripts" : "../scripts"
vagrant_defaults = File.exists?("./vagrantdefaults.rb") ? "./vagrantdefaults.rb" : "../vagrantdefaults.rb"
load vagrant_defaults
defaultOSConfigure(vm)
vm.provision "IPv6 Setup", type: "shell", path: scripts_location +"/ipv6.sh", args: [node_ip4, node_ip6, node_ip6_gw, vm.box.to_s]
install_type = getInstallType(vm, RELEASE_VERSION, GITHUB_BRANCH)
vm.provision "Ping Check", type: "shell", inline: "ping -c 2 k3s.io"
if roles.include?("server") && role_num == 0
vm.provision :k3s, run: 'once' do |k3s|
k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321
k3s.args = "server "
if IP_FAMILY.include?("ipv4")
k3s.config = <<~YAML
node-external-ip: #{node_ip4}
node-ip: #{node_ip4}
cluster-init: true
token: vagrant
cluster-cidr: 10.42.0.0/16
service-cidr: 10.43.0.0/16
bind-address: #{NETWORK4_PREFIX}.100
multi-cluster-cidr: true
flannel-iface: eth1
YAML
else
k3s.config = <<~YAML
node-external-ip: #{node_ip6}
node-ip: #{node_ip6}
cluster-init: true
token: vagrant
cluster-cidr: 2001:cafe:42::/56
service-cidr: 2001:cafe:43::/112
bind-address: #{NETWORK6_PREFIX}::10
multi-cluster-cidr: true
flannel-ipv6-masq: true
flannel-iface: eth1
YAML
end
k3s.env = ["K3S_KUBECONFIG_MODE=0644", install_type]
end
elsif roles.include?("server") && role_num != 0
vm.provision :k3s, run: 'once' do |k3s|
k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321
k3s.args = "server "
if IP_FAMILY.include?("ipv4")
k3s.config = <<~YAML
node-external-ip: #{node_ip4}
node-ip: #{node_ip4}
server: https://#{NETWORK4_PREFIX}.100:6443
token: vagrant
cluster-cidr: 10.42.0.0/16
service-cidr: 10.43.0.0/16
multi-cluster-cidr: true
flannel-iface: eth1
YAML
else
k3s.config = <<~YAML
node-external-ip: #{node_ip6}
node-ip: #{node_ip6}
server: https://[#{NETWORK6_PREFIX}::10]:6443
token: vagrant
cluster-cidr: 2001:cafe:42::/56
service-cidr: 2001:cafe:43::/112
multi-cluster-cidr: true
flannel-ipv6-masq: true
flannel-iface: eth1
YAML
end
k3s.env = ["K3S_KUBECONFIG_MODE=0644", install_type]
end
end
if roles.include?("agent")
vm.provision :k3s, run: 'once' do |k3s|
k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321
k3s.args = "agent "
if IP_FAMILY.include?("ipv4")
k3s.config = <<~YAML
node-external-ip: #{node_ip4}
node-ip: #{node_ip4}
server: https://#{NETWORK4_PREFIX}.100:6443
token: vagrant
flannel-iface: eth1
YAML
else
k3s.config = <<~YAML
node-external-ip: #{node_ip6}
node-ip: #{node_ip6}
server: https://[#{NETWORK6_PREFIX}::10]:6443
token: vagrant
flannel-iface: eth1
YAML
end
k3s.env = ["K3S_KUBECONFIG_MODE=0644", "INSTALL_K3S_SKIP_START=true", install_type]
end
end
end
Vagrant.configure("2") do |config|
config.vagrant.plugins = ["vagrant-k3s", "vagrant-reload", "vagrant-libvirt"]
config.vm.provider "libvirt" do |v|
v.cpus = NODE_CPUS
v.memory = NODE_MEMORY
end
if NODE_ROLES.kind_of?(String)
NODE_ROLES = NODE_ROLES.split(" ", -1)
end
if NODE_BOXES.kind_of?(String)
NODE_BOXES = NODE_BOXES.split(" ", -1)
end
# Must iterate on the index, vagrant does not understand iterating
# over the node roles themselves
NODE_ROLES.length.times do |i|
name = NODE_ROLES[i]
config.vm.define name do |node|
roles = name.split("-", -1)
role_num = roles.pop.to_i
provision(node.vm, roles, role_num, i)
end
end
end

281
tests/e2e/multiclustercidr/multiclustercidr_test.go Normal file
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package multiclustercidr
import (
"flag"
"fmt"
"os"
"strings"
"testing"
"github.com/k3s-io/k3s/tests/e2e"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
// Valid nodeOS: generic/ubuntu2004, opensuse/Leap-15.3.x86_64
var nodeOS = flag.String("nodeOS", "generic/ubuntu2004", "VM operating system")
var serverCount = flag.Int("serverCount", 3, "number of server nodes")
var agentCount = flag.Int("agentCount", 1, "number of agent nodes")
var hardened = flag.Bool("hardened", false, "true or false")
var ci = flag.Bool("ci", false, "running on CI")
func Test_E2EMultiClusterCIDR(t *testing.T) {
flag.Parse()
RegisterFailHandler(Fail)
suiteConfig, reporterConfig := GinkgoConfiguration()
RunSpecs(t, "MultiClusterCIDR Test Suite", suiteConfig, reporterConfig)
}
var (
kubeConfigFile string
serverNodeNames []string
agentNodeNames []string
)
var _ = ReportAfterEach(e2e.GenReport)
var _ = Describe("Verify MultiClusterCIDR Configuration", Ordered, func() {
It("Starts up IPv4 setup with no issues", func() {
var err error
os.Setenv("E2E_IP_FAMILY", "ipv4")
defer os.Unsetenv("E2E_IP_FAMILY")
serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*nodeOS, *serverCount, *agentCount)
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
fmt.Println("CLUSTER CONFIG")
fmt.Println("OS:", *nodeOS)
fmt.Println("Server Nodes:", serverNodeNames)
fmt.Println("Agent Nodes:", agentNodeNames)
kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
Expect(err).NotTo(HaveOccurred())
})
It("Checks Node Status", func() {
Eventually(func(g Gomega) {
nodes, err := e2e.ParseNodes(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParseNodes(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Checks Pod Status", func() {
Eventually(func(g Gomega) {
pods, err := e2e.ParsePods(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if strings.Contains(pod.Name, "helm-install") {
g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
} else {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParsePods(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Verifies that each node has IPv4", func() {
nodeIPs, err := e2e.GetNodeIPs(kubeConfigFile)
Expect(err).NotTo(HaveOccurred())
for _, node := range nodeIPs {
Expect(node.IPv4).Should(ContainSubstring("10.10.10"))
}
})
It("Verifies that each pod has IPv4", func() {
podIPs, err := e2e.GetPodIPs(kubeConfigFile)
Expect(err).NotTo(HaveOccurred())
for _, pod := range podIPs {
Expect(pod.IPv4).Should(Or(ContainSubstring("10.10.10"), ContainSubstring("10.42.")), pod.Name)
}
})
It("Add new CIDR", func() {
_, err := e2e.DeployWorkload("cluster-cidr.yaml", kubeConfigFile, *hardened)
Expect(err).NotTo(HaveOccurred())
Eventually(func() (string, error) {
cmd := "kubectl get clustercidr new-cidr --kubeconfig=" + kubeConfigFile
return e2e.RunCommand(cmd)
}, "120s", "5s").Should(ContainSubstring("10.248.0.0"))
})
It("Restart agent-0", func() {
agents := []string{"agent-0"}
err := e2e.RestartClusterAgent(agents)
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
})
It("Checks Node Status", func() {
Eventually(func(g Gomega) {
nodes, err := e2e.ParseNodes(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParseNodes(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Checks Pod Status", func() {
Eventually(func(g Gomega) {
pods, err := e2e.ParsePods(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if strings.Contains(pod.Name, "helm-install") {
g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
} else {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParsePods(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Verifies that each pod of agent-0 has IPv4 from the new CIDR", func() {
pods, err := e2e.ParsePods(kubeConfigFile, false)
Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if pod.Node == "agent-0" {
Expect(pod.NodeIP).Should(Or(ContainSubstring("10.10.10"), ContainSubstring("10.248.")), pod.Name)
}
}
})
It("Destroy Cluster", func() {
Expect(e2e.DestroyCluster()).To(Succeed())
Expect(os.Remove(kubeConfigFile)).To(Succeed())
})
It("Starts up IPv6 setup with no issues", func() {
var err error
os.Setenv("E2E_IP_FAMILY", "ipv6")
defer os.Unsetenv("E2E_IP_FAMILY")
serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*nodeOS, *serverCount, *agentCount)
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
fmt.Println("CLUSTER CONFIG")
fmt.Println("OS:", *nodeOS)
fmt.Println("Server Nodes:", serverNodeNames)
fmt.Println("Agent Nodes:", agentNodeNames)
kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
Expect(err).NotTo(HaveOccurred())
})
It("Checks Node Status", func() {
Eventually(func(g Gomega) {
nodes, err := e2e.ParseNodes(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParseNodes(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Checks Pod Status", func() {
Eventually(func(g Gomega) {
pods, err := e2e.ParsePods(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if strings.Contains(pod.Name, "helm-install") {
g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
} else {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParsePods(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Verifies that each node has IPv6", func() {
nodeIPs, err := e2e.GetNodeIPs(kubeConfigFile)
Expect(err).NotTo(HaveOccurred())
for _, node := range nodeIPs {
Expect(node.IPv6).Should(ContainSubstring("fd11:decf:c0ff"))
}
})
It("Verifies that each pod has IPv6", func() {
podIPs, err := e2e.GetPodIPs(kubeConfigFile)
Expect(err).NotTo(HaveOccurred())
for _, pod := range podIPs {
Expect(pod.IPv6).Should(Or(ContainSubstring("fd11:decf:c0ff"), ContainSubstring("2001:cafe:42")), pod.Name)
}
})
It("Add new CIDR", func() {
_, err := e2e.DeployWorkload("cluster-cidr-ipv6.yaml", kubeConfigFile, *hardened)
Expect(err).NotTo(HaveOccurred())
Eventually(func() (string, error) {
cmd := "kubectl get clustercidr new-cidr --kubeconfig=" + kubeConfigFile
return e2e.RunCommand(cmd)
}, "120s", "5s").Should(ContainSubstring("2001:cafe:248"))
})
It("Delete and restart agent-0", func() {
agents := []string{"agent-0"}
err := e2e.RestartClusterAgent(agents)
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
})
It("Checks Node Status", func() {
Eventually(func(g Gomega) {
nodes, err := e2e.ParseNodes(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParseNodes(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Checks Pod Status", func() {
Eventually(func(g Gomega) {
pods, err := e2e.ParsePods(kubeConfigFile, false)
g.Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if strings.Contains(pod.Name, "helm-install") {
g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
} else {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "420s", "5s").Should(Succeed())
_, err := e2e.ParsePods(kubeConfigFile, true)
Expect(err).NotTo(HaveOccurred())
})
It("Verifies that each pod of agent-0 has IPv6 from the new CIDR", func() {
pods, err := e2e.ParsePods(kubeConfigFile, false)
Expect(err).NotTo(HaveOccurred())
for _, pod := range pods {
if pod.Node == "agent-0" {
Expect(pod.NodeIP).Should(Or(ContainSubstring("fd11:decf:c0ff"), ContainSubstring("2001:cafe:248")), pod.Name)
}
}
})
})
var failed bool
var _ = AfterEach(func() {
failed = failed || CurrentSpecReport().Failed()
})
var _ = AfterSuite(func() {
if failed && !*ci {
fmt.Println("FAILED!")
} else {
Expect(e2e.DestroyCluster()).To(Succeed())
Expect(os.Remove(kubeConfigFile)).To(Succeed())
}
})