iptables -t mangle -A ISTIO_DIVERT -j MARK --set-mark 1337
iptables -t mangle -A ISTIO_DIVERT -j ACCEPT
iptables -t mangle -A ISTIO_TPROXY ! -d 127.0.0.1/32 -p tcp -j TPROXY --tproxy-mark 1337/0xffffffff --on-port 15006
iptables -t mangle -A PREROUTING -p tcp -j ISTIO_INBOUND
iptables -t mangle -A ISTIO_INBOUND -p tcp -m conntrack --ctstate RELATED,ESTABLISHED -j ISTIO_DIVERT

* mangle
-N ISTIO_DIVERT
-N ISTIO_TPROXY
-N ISTIO_INBOUND
-A ISTIO_DIVERT -j MARK --set-mark 1337
-A ISTIO_DIVERT -j ACCEPT
-A ISTIO_TPROXY ! -d 127.0.0.1/32 -p tcp -j TPROXY --tproxy-mark 1337/0xffffffff --on-port 15006
-A PREROUTING -p tcp -j ISTIO_INBOUND
-A ISTIO_INBOUND -p tcp --dport 15020 -j RETURN
-A ISTIO_INBOUND -p tcp --dport 15021 -j RETURN
-A ISTIO_INBOUND -p tcp --dport 15090 -j RETURN

iptables -t mangle -A ISTIO_DIVERT -j MARK --set-mark 1337
iptables -t mangle -A ISTIO_DIVERT -j ACCEPT
iptables -t mangle -A ISTIO_TPROXY ! -d 127.0.0.1/32 -p tcp -j TPROXY --tproxy-mark 1337/0xffffffff --on-port 15006
iptables -t mangle -A PREROUTING -p tcp -j ISTIO_INBOUND
iptables -t mangle -A ISTIO_INBOUND -p tcp --dport 32000 -m conntrack --ctstate RELATED,ESTABLISHED -j ISTIO_DIVERT

          valueFrom:
            resourceFieldRef:
              divisor: "0"
              resource: limits.cpu
        - name: PROXY_CONFIG
          value: |
            {"interceptionMode":"TPROXY"}
        - name: ISTIO_META_POD_PORTS
          value: |-
            [
                {"name":"http","containerPort":80}
            ]
        - name: ISTIO_META_APP_CONTAINERS
          value: hello

* mangle
-N ISTIO_DIVERT
-N ISTIO_TPROXY
-N ISTIO_INBOUND
-A ISTIO_DIVERT -j MARK --set-mark 1337
-A ISTIO_DIVERT -j ACCEPT
-A ISTIO_TPROXY ! -d 127.0.0.1/32 -p tcp -j TPROXY --tproxy-mark 1337/0xffffffff --on-port 15006
-A PREROUTING -p tcp -j ISTIO_INBOUND
-A ISTIO_INBOUND -p tcp --dport 15020 -j RETURN
-A ISTIO_INBOUND -p tcp --dport 15021 -j RETURN
-A ISTIO_INBOUND -p tcp --dport 15090 -j RETURN

iptables -t mangle -A ISTIO_DIVERT -j MARK --set-mark 1337
iptables -t mangle -A ISTIO_DIVERT -j ACCEPT
iptables -t mangle -A ISTIO_TPROXY ! -d 127.0.0.1/32 -p tcp -j TPROXY --tproxy-mark 1337/0xffffffff --on-port 15006
iptables -t mangle -A PREROUTING -p tcp -j ISTIO_INBOUND
iptables -t mangle -A ISTIO_INBOUND -p tcp -m conntrack --ctstate RELATED,ESTABLISHED -j ISTIO_DIVERT

        prometheus.io/port: "15020"
        prometheus.io/scrape: "true"
        proxy.istio.io/overrides: '{"containers":[{"name":"istio-proxy","resources":{},"securityContext":{"runAsUser":1234,"runAsGroup":4321}}]}'

  # If "TPROXY", use iptables TPROXY to redirect to Envoy.
  # The "TPROXY" mode preserves both the source and destination IP
  # addresses and ports, so that they can be used for advanced filtering
  # and manipulation.
  # The "TPROXY" mode also configures the sidecar to run with the
  # CAP_NET_ADMIN capability, which is required to use TPROXY.
  #interceptionMode: REDIRECT
  #

# The "REDIRECT" mode loses source addresses during redirection.
# If "TPROXY", use iptables TPROXY to redirect to Envoy.
# The "TPROXY" mode preserves both the source and destination IP
# addresses and ports, so that they can be used for advanced filtering
# and manipulation.
# The "TPROXY" mode also configures the sidecar to run with the
# CAP_NET_ADMIN capability, which is required to use TPROXY.
# If not set, defaults to "REDIRECT".

	INPUT:       {},
	OUTPUT:      {},
	FORWARD:     {},
	PREROUTING:  {},
	POSTROUTING: {},
}

// Constants used for generating iptables commands
const (
	TCP = "tcp"
	UDP = "udp"

	TPROXY   = "TPROXY"
	RETURN   = "RETURN"
	ACCEPT   = "ACCEPT"
	REDIRECT = "REDIRECT"
	MARK     = "MARK"
	CT       = "CT"
	DROP     = "DROP"
)

const (