delErrs = append(delErrs, cfg.ext.Run(iptablesconstants.IPTables, &iptVer, nil, cmd...))
		}

		for _, cmd := range optionalDeleteCmds {
			err := cfg.ext.Run(iptablesconstants.IPTables, &iptVer, nil, cmd...)
			if err != nil {
				log.Debugf("ignoring error deleting optional iptables rule: %v", err)
			}
		}
	}
	return errors.Join(delErrs...)
}

contents:
  repositories:
    - https://packages.wolfi.dev/os
  keyring:
    - https://packages.wolfi.dev/os/wolfi-signing.rsa.pub
  packages:
    - ca-certificates-bundle
    - wolfi-baselayout
    - glibc
    - iptables
    - ip6tables
    - libnetfilter_conntrack
    - libnfnetlink
    - libmnl
    - libgcc
archs:
  - x86_64
  - aarch64
paths:
- path: /run
  type: directory
  permissions: 0o755
accounts:
  users:

		lines = slices.Filter(lines, func(line string) bool {
			return line != "iptables-save" && line != "ip6tables-save"
		})

		if len(lines) >= 1 && strings.HasPrefix(lines[0], "* ") {
			tableName := lines[0][2:]
			lines = append(lines, "COMMIT")
			tables[tableName] = strings.Join(lines, "\n")
		}
	}
	return tables
}

  && apt-get clean \
  && rm -rf  /var/log/*log /var/lib/apt/lists/* /var/log/apt/* /var/lib/dpkg/*-old /var/cache/debconf/*-old \
  && update-alternatives --set iptables /usr/sbin/iptables-legacy \
  && update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy

# Sudoers used to allow tcpdump and other debug utilities.
RUN useradd -m --uid 1337 istio-proxy && \

	initialized.Do(func() {
		// Setup group namespace so iptables --gid-owner will work
		assert.NoError(t, userns.WriteGroupMap(map[uint32]uint32{userns.OriginalGID(): 0}))
		// Istio iptables expects to find a non-localhost IP in some interface
		assert.NoError(t, exec.Command("ip", "addr", "add", "240.240.240.240/32", "dev", "lo").Run())
		// Put a new file we have permission to access over xtables.lock
		xtables := filepath.Join(t.TempDir(), "xtables.lock")

	"istio.io/istio/pkg/log"
	"istio.io/istio/tools/istio-iptables/pkg/cmd"
	"istio.io/istio/tools/istio-iptables/pkg/config"
	"istio.io/istio/tools/istio-iptables/pkg/dependencies"
)

// getNs is a unit test override variable for interface create.
var getNs = ns.GetNS

// Program defines a method which programs iptables based on the parameters
// provided in Redirect.
func (ipt *iptables) Program(podName, netns string, rdrct *Redirect) error {

// limitations under the License.

package plugin

// InterceptRuleMgr configures networking tables (e.g. iptables or nftables) for
// redirecting traffic to an Istio proxy.
type InterceptRuleMgr interface {
	Program(podName, netns string, redirect *Redirect) error
}

// Constructor for iptables InterceptRuleMgr
func IptablesInterceptRuleMgr() InterceptRuleMgr {
	return newIPTables()

	AddLoopbackRoutesCnt  atomic.Int32
	DelLoopbackRoutesCnt  atomic.Int32
}

var _ iptables.NetlinkDependencies = &fakeIptablesDeps{}

func (r *fakeIptablesDeps) AddInpodMarkIPRule(cfg *iptables.Config) error {
	r.AddInpodMarkIPRuleCnt.Add(1)
	return nil
}

func (r *fakeIptablesDeps) DelInpodMarkIPRule(cfg *iptables.Config) error {
	r.DelInpodMarkIPRuleCnt.Add(1)
	return nil
}

        - If so, calls `istio-iptables` with params to setup pod netns
        - If ambient, sets up the ambient logic.

- `istio-iptables`
    - sets up iptables to redirect a list of ports to the port envoy will listen
    - shared code with istio-init container
    - it will generate an iptables-save config, based on annotations/labels and other settings, and apply it.

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/intstr"

	"istio.io/istio/cni/pkg/iptables"
	istiolog "istio.io/istio/pkg/log"
	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/tools/istio-iptables/pkg/dependencies"
)

func setupLogging() {
	opts := istiolog.DefaultOptions()
	opts.SetDefaultOutputLevel(istiolog.OverrideScopeName, istiolog.DebugLevel)