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How to use Swap method of install Package

Best Gauge code snippet using install.Swap

install_plans.go

Source:install_plans.go

...183		return &resource.RPM{Name: binName, Version: version, DisableExcludes: "kubernetes"}184	}, nil185}186// BuildK8SPlan creates a plan for running kubernetes on a node187func BuildK8SPlan(kubernetesVersion string, kubeletNodeIP string, seLinuxInstalled, setSELinuxPermissive, disableSwap, lockYUMPkgs bool, pkgType resource.PkgType, cloudProvider string, extraArgs map[string]string, binInstaller func(string, string) plan.Resource, flavor *eksd.EKSD) plan.Resource {188	b := plan.NewBuilder()189	// Kubernetes repos190	switch pkgType {191	case resource.PkgTypeRPM, resource.PkgTypeRHEL:192		// do nothing193	case resource.PkgTypeDeb:194		// XXX: Workaround for https://github.com/weaveworks/wksctl/issues/654 : *.gpg is a binary format, and currently wks is unable to handle195		// binary files in the configuration configmap. Therefore, I needed to supply the *.gpg contents base64-encoded.196		// In a world without that bug, one could just use the "!!binary"" YAML format in the configmap and store the *.gpg there directly.197		b.AddResource("configure:kubernetes-repo-key", &resource.Run{198			Script: object.String("base64 -d /tmp/cloud-google-com.gpg.b64 > /etc/apt/trusted.gpg.d/cloud-google-com.gpg"),199		})200		repoLine := "deb https://apt.kubernetes.io/ kubernetes-xenial main"201		repoFile := "/etc/apt/sources.list.d/wks-google.list"202		sedExpr := fmt.Sprintf(`\!%s!d`, repoLine) // same as '/%s/d' but allows '/' in %s203		b.AddResource("configure:kubernetes-repo", &resource.Run{204			Script:     object.String(fmt.Sprintf("echo %q | tee -a %q", repoLine, repoFile)),205			UndoScript: object.String(fmt.Sprintf(`test ! -f %q || sed -i '%s' %q`, repoFile, sedExpr, repoFile)),206		}, plan.DependOn("configure:kubernetes-repo-key"))207	}208	// If SELinux is already installed and we need to set SELinux to permissive mode, do it209	if seLinuxInstalled && setSELinuxPermissive {210		b.AddResource(211			"selinux:permissive",212			&resource.Run{213				Script:     object.String("setenforce 0 && sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config"),214				UndoScript: object.String("setenforce 1 && sed -i 's/^SELINUX=permissive$/SELINUX=enforcing/' /etc/selinux/config || true"),215			})216	}217	// Install k8s packages218	switch pkgType {219	case resource.PkgTypeRPM, resource.PkgTypeRHEL:220		if flavor != nil {221			b.AddResource("install:kubelet-package", &resource.RPM{Name: "kubelet", Version: kubernetesVersion, DisableExcludes: "kubernetes"})222			b.AddResource(223				"cleanup:kubelet",224				&resource.Run{Script: object.String("pkill kubelet | true")},225				plan.DependOn("install:kubelet-package"))226			b.AddResource("install:kubelet", binInstaller("kubelet", kubernetesVersion), plan.DependOn("cleanup:kubelet"))227		} else {228			b.AddResource("install:kubelet", binInstaller("kubelet", kubernetesVersion))229		}230		b.AddResource("install:kubectl", binInstaller("kubectl", kubernetesVersion))231		b.AddResource("install:kubeadm",232			binInstaller("kubeadm", kubernetesVersion),233			plan.DependOn("install:kubectl"),234			plan.DependOn("install:kubelet"),235		)236	case resource.PkgTypeDeb:237		// TODO(michal): Install the newest release version by default instead of hardcoding "-00".238		if flavor != nil {239			b.AddResource("install:kubelet-package", &resource.Deb{Name: "kubelet", Suffix: "=" + kubernetesVersion + "-00"},240				plan.DependOn("configure:kubernetes-repo"))241			b.AddResource(242				"cleanup:kubelet",243				&resource.Run{Script: object.String("pkill kubelet | true")},244				plan.DependOn("install:kubelet-package"))245			b.AddResource("install:kubelet", binInstaller("kubelet", kubernetesVersion), plan.DependOn("cleanup:kubelet"))246		} else {247			b.AddResource("install:kubelet", binInstaller("kubelet", kubernetesVersion), plan.DependOn("configure:kubernetes-repo"))248		}249		b.AddResource("install:kubeadm", binInstaller("kubeadm", kubernetesVersion), plan.DependOn("configure:kubernetes-repo"), plan.DependOn("install:kubelet"))250		b.AddResource("install:kubectl", binInstaller("kubectl", kubernetesVersion), plan.DependOn("configure:kubernetes-repo"))251	}252	if lockYUMPkgs {253		b.AddResource(254			"lock-package:kubernetes",255			&resource.Run{256				Script: object.String("yum versionlock add 'kube*'"),257				// If we never installed yum-plugin-versionlock or kubernetes, this should not fail258				UndoScript: object.String("yum versionlock delete 'kube*' || true")},259			plan.DependOn("install:kubectl"),260		)261	}262	b.AddResource(263		"create-dir:kubelet.service.d",264		&resource.Dir{Path: object.String("/etc/systemd/system/kubelet.service.d")},265	)266	b.AddResource(267		"install:kubeadm-conf",268		&resource.File{Content: `# Note: This dropin only works with kubeadm and kubelet v1.11+269[Service]270Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf"271Environment="KUBELET_CONFIG_ARGS=--config=/var/lib/kubelet/config.yaml"272# This is a file that "kubeadm init" and "kubeadm join" generates at runtime, populating the KUBELET_KUBEADM_ARGS variable dynamically273EnvironmentFile=-/var/lib/kubelet/kubeadm-flags.env274# This is a file that the user can use for overrides of the kubelet args as a last resort. Preferably, the user should use275# the .NodeRegistration.KubeletExtraArgs object in the configuration files instead. KUBELET_EXTRA_ARGS should be sourced from this file.276EnvironmentFile=-/etc/default/kubelet277ExecStart=278ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS`,279			Destination: "/etc/systemd/system/kubelet.service.d/10-kubeadm.conf"},280		plan.DependOn("create-dir:kubelet.service.d"))281	kubeletDeps := []string{"install:kubeadm-conf"}282	processCloudProvider := func(cmdline string) string {283		if cloudProvider != "" {284			log.WithField("cloudProvider", cloudProvider).Debug("using cloud provider")285			return fmt.Sprintf("%s --cloud-provider=%s\n", cmdline, cloudProvider)286		}287		return cmdline + "\n"288	}289	processAdditionalArgs := func(cmdline string) string {290		result := cmdline291		strs := []string{}292		for name, value := range extraArgs {293			strs = append(strs, fmt.Sprintf("--%s='%s'", name, value))294		}295		sort.Strings(strs)296		for _, str := range strs {297			result = fmt.Sprintf("%s %s", result, str)298		}299		return processCloudProvider(result)300	}301	switch pkgType {302	case resource.PkgTypeRPM, resource.PkgTypeRHEL:303		if disableSwap {304			swapDisable := "configure:kubernetes-swap-disable"305			kubeletDeps = append(kubeletDeps, swapDisable)306			b.AddResource(307				swapDisable,308				buildDisableSwapPlan(),309				plan.DependOn("create-dir:kubelet.service.d"))310			kubeletSysconfig := "configure:kubelet-sysconfig"311			b.AddResource(312				kubeletSysconfig,313				&resource.File{314					Content:     processAdditionalArgs(fmt.Sprintf("KUBELET_EXTRA_ARGS=--node-ip=%s", kubeletNodeIP)),315					Destination: "/etc/default/kubelet"},316				plan.DependOn("create-dir:kubelet.service.d", "install:kubelet"))317			kubeletDeps = append(kubeletDeps, kubeletSysconfig)318		} else {319			kubeletSysconfig := "configure:kubelet-sysconfig"320			kubeletDeps = append(kubeletDeps, kubeletSysconfig)321			b.AddResource(322				kubeletSysconfig,323				&resource.File{324					Content:     processAdditionalArgs(fmt.Sprintf("KUBELET_EXTRA_ARGS=--fail-swap-on=false --node-ip=%s", kubeletNodeIP)),325					Destination: "/etc/default/kubelet"},326				plan.DependOn("create-dir:kubelet.service.d", "install:kubelet"))327		}328	case resource.PkgTypeDeb:329		if disableSwap {330			swapDisable := "configure:kubernetes-swap-disable"331			kubeletDeps = append(kubeletDeps, swapDisable)332			b.AddResource(333				swapDisable,334				buildDisableSwapPlan(),335				plan.DependOn("create-dir:kubelet.service.d"))336			kubeletDefault := "configure:kubelet-default"337			kubeletDeps = append(kubeletDeps, kubeletDefault)338			b.AddResource(339				kubeletDefault,340				&resource.File{341					Content:     processAdditionalArgs(fmt.Sprintf("KUBELET_EXTRA_ARGS=--node-ip=%s", kubeletNodeIP)),342					Destination: "/etc/default/kubelet"},343				plan.DependOn("create-dir:kubelet.service.d", "install:kubelet"))344		} else {345			kubeletDefault := "configure:kubelet-default"346			kubeletDeps = append(kubeletDeps, kubeletDefault)347			b.AddResource(348				kubeletDefault,349				&resource.File{350					Content:     processAdditionalArgs(fmt.Sprintf("KUBELET_EXTRA_ARGS=--fail-swap-on=false --node-ip=%s", kubeletNodeIP)),351					Destination: "/etc/default/kubelet"},352				plan.DependOn("create-dir:kubelet.service.d", "install:kubelet"))353		}354	}355	b.AddResource(356		"systemd:daemon-reload",357		&resource.Run{Script: object.String("systemctl daemon-reload")},358		plan.DependOn("create-dir:kubelet.service.d", "install:kubelet"))359	b.AddResource(360		"service-init:kubelet",361		&resource.Service{Name: "kubelet", Status: "active", Enabled: true},362		plan.DependOn("systemd:daemon-reload", kubeletDeps...))363	p, err := b.Plan()364	if err != nil {365		log.Fatalf("%v", err)366	}367	return &p368}369// BuildDisableSwapPlan turns off swap and removes swap entries from /etc/fstab so swap will remain disabled on reboot370func buildDisableSwapPlan() plan.Resource {371	b := plan.NewBuilder()372	b.AddResource("configure:disable-swap-in-session", &resource.Run{Script: object.String("/sbin/swapoff -a")})373	b.AddResource(374		"configure:disable-swap-going-forward",375		&resource.Run{Script: object.String(376			// The ";" instead of "&&" below is because we want to copy the empty temp file over /etc/fstab if /etc/fstab only contains swap entries377			// and the "egrep" will fail on an empty file378			`tmpfile=$(mktemp /tmp/disable-swap.XXXXXX) && egrep -v '\s*\S*\s*\S*\s*swap.*' /etc/fstab > $tmpfile; mv $tmpfile /etc/fstab`)},379		plan.DependOn("configure:disable-swap-in-session"))380	p, err := b.Plan()381	if err != nil {382		log.Fatalf("%v", err)383	}384	return &p...

config.go

Source:config.go

...69	InstallImage InstallImage    `json:"install_image"` //See InstallImage struct70	Datasets     []ZFSLayout     `json:"datasets"`      //The Partition Layout for ZFS. e.g Where is /var /etc and others located71	Rpool        string          `json:"rpool"`         //Name of the root pool By Default(rpool)72	BEName       string          `json:"be_name"`       //Name of the new Boot Environment defaults to openindiana73	SwapSize     string          `json:"swap_size"`     //Size of the SWAP Partition defaults to 2g74	DumpSize     string          `json:"dump_size"`     //Size of the Dump Partition defaults to swap_size75	BootLoader   string          `json:"boot_loader"`   //Valid values are Loader and Grub76	Net          NetworkSettings `json:"net"`           //The Network Interfaces of the Box77	TimeZone     string          `json:"time_zone"`     //Timezone to setup78	Locale       string          `json:"locale"`        //Locale like en_US.UTF-8 or de_CH.UTF-879	RootPWClear  string          `json:"root_pw_clear"` //The clear string root password80	RootPW       string          `json:"root_pw"`       //The hashed81	Hostname     string          `json:"hostname"`      //The Hostname of the machine82	Keymap       string          `json:"keymap"`        //Keymap the Machine will have e.g. Swiss-German83}84func (conf *InstallConfiguration) GetRootDataSetName() string {85	return fmt.Sprintf("%s/ROOT/%s", conf.Rpool, conf.BEName)86}87func (conf *InstallConfiguration) FillUnSetValues() {88	if conf.SwapSize == "" {89		conf.SwapSize = "2g"90	}91	if conf.DumpSize == "" {92		conf.DumpSize = conf.SwapSize93	}94	if conf.BEName == "" {95		conf.BEName = "openindiana"96	}97	if conf.Rpool == "" {98		conf.Rpool = "rpool"99	}100	//Assume that we want the Media URL from devprop if it is not in the config101	if conf.InstallImage.URL == "" {102		conf.InstallImage.URL = devprop.GetValue("install_media")103	}104	if conf.RootPW == "" {105		if conf.RootPWClear != "" {106			hash, err := bcrypt.GenerateFromPassword([]byte(conf.RootPWClear), 5)...

init.go

Source:init.go

1package system2var CheckSshConnect = `:`3var disableSwap = `4#!/bin/bash5set -e6swapoff -a7sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab 8`9var disableFirewallod = `10#!/bin/bash11set -e12systemctl stop firewalld13systemctl disable firewalld14iptables -F && iptables -X && iptables -F -t nat && iptables -X -t nat15iptables -P FORWARD ACCEPT16`17var disableSelinux = `18#!/bin/bash19setenforce 020sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config21`22var setDefaultTimeZone = `23#!/bin/bash24set -e25timedatectl set-timezone Asia/Shanghai26`27var installDependSoft = `28#!/bin/bash29set -e30yum install -y epel-release31yum install -y chrony conntrack ipvsadm ipset jq iptables curl sysstat libseccomp wget socat git32`33var SystemOperation = []map[string]string{34	{"name": "installDependSoft", "script": installDependSoft},35	{"name": "disableFirewallod", "script": disableFirewallod},36	{"name": "disableSelinux", "script": disableSelinux},37	{"name": "disableSwap", "script": disableSwap},38	{"name": "setDefaultTimeZone", "script": setDefaultTimeZone},39}...

Swap

Using AI Code Generation

1func main() {2    fmt.Printf("Before swap, value of a : %d3    fmt.Printf("Before swap, value of b : %d4    install.Swap(&a, &b)5    fmt.Printf("After swap, value of a : %d6    fmt.Printf("After swap, value of b : %d7}

Swap

Using AI Code Generation

1import "fmt"2func main() {3	i := install{}4	i.Swap()5}6import "fmt"7func main() {8	i := install{}9	i.Swap()10}11import "fmt"12func main() {13	i := install{}14	i.Swap()15}16import "fmt"17func main() {18	i := install{}19	i.Swap()20}21import "fmt"22func main() {23	i := install{}24	i.Swap()25}26import "fmt"27func main() {28	i := install{}29	i.Swap()30}31import "fmt"32func main() {33	i := install{}34	i.Swap()35}36import "fmt"37func main() {38	i := install{}39	i.Swap()40}41import "fmt"42func main() {43	i := install{}44	i.Swap()45}46import "fmt"47func main() {48	i := install{}49	i.Swap()50}51import "fmt"52func main() {53	i := install{}54	i.Swap()55}56import "fmt"57func main() {58	i := install{}59	i.Swap()60}61import "fmt"62func main() {63	i := install{}64	i.Swap()65}66import "fmt"67func main() {68	i := install{}

Swap

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Before swap a = ", a, " b = ", b)4    Swap(&a, &b)5    fmt.Println("After swap a = ", a, " b = ", b)6}7func Swap(x *int, y *int) {8}9import "fmt"10func main() {11    fmt.Println("Before swap a = ", a, " b = ", b)12    Swap(a, b)13    fmt.Println("After swap a = ", a, " b = ", b)14}15func Swap(x int, y int) {16}17In the main() method, we have declared two integer variables a and b and assigned the values 10 and 20 respectively. We have called

Swap

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("go", "run", "2.go")4	cmd.SysProcAttr = &syscall.SysProcAttr{5	}6	err := cmd.Start()7	if err != nil {8		fmt.Println(err)9	}10	err = cmd.Wait()11	if err != nil {12		fmt.Println(err)13	}14}15import (16func main() {17	cmd := exec.Command("go", "run", "3.go")18	cmd.SysProcAttr = &syscall.SysProcAttr{19	}20	err := cmd.Start()21	if err != nil {22		fmt.Println(err)23	}24	err = cmd.Wait()25	if err != nil {26		fmt.Println(err)27	}28}29import (30func main() {31	cmd := exec.Command("go", "run", "4.go")32	cmd.SysProcAttr = &syscall.SysProcAttr{33	}34	err := cmd.Start()35	if err != nil {36		fmt.Println(err)37	}38	err = cmd.Wait()39	if err != nil {40		fmt.Println(err)41	}42}43import (44func main() {45	cmd := exec.Command("go", "run", "5.go")46	cmd.SysProcAttr = &syscall.SysProcAttr{47	}48	err := cmd.Start()49	if err != nil {50		fmt.Println(err)51	}52	err = cmd.Wait()53	if err != nil {

Swap

Using AI Code Generation

1import (2func main() {3	fmt.Println("Before swap")4	fmt.Println("i1 : ", i1.Name)5	fmt.Println("i2 : ", i2.Name)6	i1.Swap(&i2)7	fmt.Println("After swap")8	fmt.Println("i1 : ", i1.Name)9	fmt.Println("i2 : ", i2.Name)10}11import (12type Install struct {13}14func (i *Install) Swap(i2 *Install) {15}16func main() {17	fmt.Println("Before swap")18	fmt.Println("i1 : ", i1.Name)19	fmt.Println("i2 : ", i2.Name)20	i1.Swap(&i2)21	fmt.Println("After swap")22	fmt.Println("i1 : ", i1

Swap

Using AI Code Generation

1import (2type install struct {3}4func main() {5	inst := install{a: 10, b: 20}6	fmt.Println("Before Swap", inst)7	inst.Swap()8	fmt.Println("After Swap", inst)9}10func (inst *install) Swap() {11}12Before Swap {10 20}13After Swap {20 10}

Swap

Using AI Code Generation

1import "fmt"2func main() {3  fmt.Println("Enter 2 numbers:")4  fmt.Scanln(&x, &y)5  fmt.Println("Before Swapping")6  fmt.Println("x=", x, "y=", y)7  fmt.Println("After Swapping")8  fmt.Println("x=", x, "y=", y)9}10import "fmt"11func main() {12  fmt.Println("Enter 2 numbers:")13  fmt.Scanln(&x, &y)14  fmt.Println("Before Swapping")15  fmt.Println("x=", x, "y=", y)16  fmt.Println("After Swapping")17  fmt.Println("x=", x, "y=", y)18}19import "fmt"20func main() {21  fmt.Println("Enter 2 numbers:")22  fmt.Scanln(&x, &y)23  fmt.Println("Before Swapping")24  fmt.Println("x=", x, "y=", y)25  fmt.Println("After Swapping")26  fmt.Println("x=", x, "y=", y)27}28import "fmt"29func main() {30  fmt.Println("Enter 2 numbers:")31  fmt.Scanln(&x,

Swap

Using AI Code Generation

1import (2func main() {3 fmt.Println(install.Swap(2, 3))4}5func Swap(x, y int) (int, int) {6}

Swap

Using AI Code Generation

1import (2func main() {3	i := install.New()4	install.Swap(i)5}6import (7type install struct{}8func New() *install {9	return &install{}10}11func Swap(i *install) {12	fmt.Println("Swap")13}14import (15func TestSwap(t *testing.T) {16	i := New()17	Swap(i)18}

Swap

Using AI Code Generation

1import (2func main() {3    fmt.Println("Before Swap")4    fmt.Println("a =", a, "b =", b)5    install.Swap(&a, &b)6    fmt.Println("After Swap")7    fmt.Println("a =", a, "b =", b)8}9import (10func main() {11    fmt.Println("Before Swap")12    fmt.Println("a =", a, "b =", b)13    install.Swap(a, b)14    fmt.Println("After Swap")15    fmt.Println("a =", a, "b =", b)16}

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