Golang iptables.Exists函数代码示例

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本文整理汇总了Golang中github.com/docker/docker/pkg/iptables.Exists函数的典型用法代码示例。如果您正苦于以下问题：Golang Exists函数的具体用法？Golang Exists怎么用？Golang Exists使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Exists函数的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: TestLinksIpTablesRulesWhenLinkAndUnlink

func TestLinksIpTablesRulesWhenLinkAndUnlink(t *testing.T) {
	testRequires(t, SameHostDaemon)
	defer deleteAllContainers()

	dockerCmd(t, "run", "-d", "--name", "child", "--publish", "8080:80", "busybox", "top")
	dockerCmd(t, "run", "-d", "--name", "parent", "--link", "child:http", "busybox", "top")

	childIP := findContainerIP(t, "child")
	parentIP := findContainerIP(t, "parent")

	sourceRule := []string{"-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", childIP, "--sport", "80", "-d", parentIP, "-j", "ACCEPT"}
	destinationRule := []string{"-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", parentIP, "--dport", "80", "-d", childIP, "-j", "ACCEPT"}
	if !iptables.Exists("filter", "DOCKER", sourceRule...) || !iptables.Exists("filter", "DOCKER", destinationRule...) {
		t.Fatal("Iptables rules not found")
	}

	dockerCmd(t, "rm", "--link", "parent/http")
	if iptables.Exists("filter", "DOCKER", sourceRule...) || iptables.Exists("filter", "DOCKER", destinationRule...) {
		t.Fatal("Iptables rules should be removed when unlink")
	}

	dockerCmd(t, "kill", "child")
	dockerCmd(t, "kill", "parent")

	logDone("link - verify iptables when link and unlink")
}

开发者ID:yckrasnodar，项目名称:docker，代码行数:26，代码来源:docker_cli_links_test.go

示例2: TestLinksIpTablesRulesWhenLinkAndUnlink

func TestLinksIpTablesRulesWhenLinkAndUnlink(t *testing.T) {
	cmd(t, "run", "-d", "--name", "child", "--publish", "8080:80", "busybox", "sleep", "10")
	cmd(t, "run", "-d", "--name", "parent", "--link", "child:http", "busybox", "sleep", "10")

	childIp := findContainerIp(t, "child")
	parentIp := findContainerIp(t, "parent")

	sourceRule := []string{"FORWARD", "-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", childIp, "--sport", "80", "-d", parentIp, "-j", "ACCEPT"}
	destinationRule := []string{"FORWARD", "-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", parentIp, "--dport", "80", "-d", childIp, "-j", "ACCEPT"}
	if !iptables.Exists(sourceRule...) || !iptables.Exists(destinationRule...) {
		t.Fatal("Iptables rules not found")
	}

	cmd(t, "rm", "--link", "parent/http")
	if iptables.Exists(sourceRule...) || iptables.Exists(destinationRule...) {
		t.Fatal("Iptables rules should be removed when unlink")
	}

	cmd(t, "kill", "child")
	cmd(t, "kill", "parent")
	deleteAllContainers()

	logDone("link - verify iptables when link and unlink")
}

开发者ID:enulex，项目名称:docker，代码行数:24，代码来源:docker_cli_links_test.go

示例3: TestLinksIpTablesRulesWhenLinkAndUnlink

func (s *DockerSuite) TestLinksIpTablesRulesWhenLinkAndUnlink(c *check.C) {
	testRequires(c, SameHostDaemon)

	dockerCmd(c, "run", "-d", "--name", "child", "--publish", "8080:80", "busybox", "top")
	dockerCmd(c, "run", "-d", "--name", "parent", "--link", "child:http", "busybox", "top")

	childIP := findContainerIP(c, "child")
	parentIP := findContainerIP(c, "parent")

	sourceRule := []string{"-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", childIP, "--sport", "80", "-d", parentIP, "-j", "ACCEPT"}
	destinationRule := []string{"-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", parentIP, "--dport", "80", "-d", childIP, "-j", "ACCEPT"}
	if !iptables.Exists("filter", "DOCKER", sourceRule...) || !iptables.Exists("filter", "DOCKER", destinationRule...) {
		c.Fatal("Iptables rules not found")
	}

	dockerCmd(c, "rm", "--link", "parent/http")
	if iptables.Exists("filter", "DOCKER", sourceRule...) || iptables.Exists("filter", "DOCKER", destinationRule...) {
		c.Fatal("Iptables rules should be removed when unlink")
	}

	dockerCmd(c, "kill", "child")
	dockerCmd(c, "kill", "parent")

}

开发者ID:zb-basketball2015，项目名称:docker，代码行数:24，代码来源:docker_cli_links_test.go

示例4: setupIPTables

func setupIPTables(addr net.Addr, icc, ipmasq bool) error {
	// Enable NAT

	if ipmasq {
		natArgs := []string{"POSTROUTING", "-t", "nat", "-s", addr.String(), "!", "-o", bridgeIface, "-j", "MASQUERADE"}

		if !iptables.Exists(natArgs...) {
			if output, err := iptables.Raw(append([]string{"-I"}, natArgs...)...); err != nil {
				return fmt.Errorf("Unable to enable network bridge NAT: %s", err)
			} else if len(output) != 0 {
				return &iptables.ChainError{Chain: "POSTROUTING", Output: output}
			}
		}
	}

	var (
		args       = []string{"FORWARD", "-i", bridgeIface, "-o", bridgeIface, "-j"}
		acceptArgs = append(args, "ACCEPT")
		dropArgs   = append(args, "DROP")
	)

	if !icc {
		iptables.Raw(append([]string{"-D"}, acceptArgs...)...)

		if !iptables.Exists(dropArgs...) {
			log.Debugf("Disable inter-container communication")
			if output, err := iptables.Raw(append([]string{"-I"}, dropArgs...)...); err != nil {
				return fmt.Errorf("Unable to prevent intercontainer communication: %s", err)
			} else if len(output) != 0 {
				return fmt.Errorf("Error disabling intercontainer communication: %s", output)
			}
		}
	} else {
		iptables.Raw(append([]string{"-D"}, dropArgs...)...)

		if !iptables.Exists(acceptArgs...) {
			log.Debugf("Enable inter-container communication")
			if output, err := iptables.Raw(append([]string{"-I"}, acceptArgs...)...); err != nil {
				return fmt.Errorf("Unable to allow intercontainer communication: %s", err)
			} else if len(output) != 0 {
				return fmt.Errorf("Error enabling intercontainer communication: %s", output)
			}
		}
	}

	// Accept all non-intercontainer outgoing packets
	outgoingArgs := []string{"FORWARD", "-i", bridgeIface, "!", "-o", bridgeIface, "-j", "ACCEPT"}
	if !iptables.Exists(outgoingArgs...) {
		if output, err := iptables.Raw(append([]string{"-I"}, outgoingArgs...)...); err != nil {
			return fmt.Errorf("Unable to allow outgoing packets: %s", err)
		} else if len(output) != 0 {
			return &iptables.ChainError{Chain: "FORWARD outgoing", Output: output}
		}
	}

	// Accept incoming packets for existing connections
	existingArgs := []string{"FORWARD", "-o", bridgeIface, "-m", "conntrack", "--ctstate", "RELATED,ESTABLISHED", "-j", "ACCEPT"}

	if !iptables.Exists(existingArgs...) {
		if output, err := iptables.Raw(append([]string{"-I"}, existingArgs...)...); err != nil {
			return fmt.Errorf("Unable to allow incoming packets: %s", err)
		} else if len(output) != 0 {
			return &iptables.ChainError{Chain: "FORWARD incoming", Output: output}
		}
	}
	return nil
}

开发者ID:baa-archieve，项目名称:docker，代码行数:67，代码来源:driver.go

注：本文中的github.com/docker/docker/pkg/iptables.Exists函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。