# Version is the base image version from the TLD Makefile
ARG BASE_VERSION=latest
ARG ISTIO_BASE_REGISTRY=gcr.io/istio-release

# The following section is used as base image if BASE_DISTRIBUTION=debug
FROM ${ISTIO_BASE_REGISTRY}/base:${BASE_VERSION} as debug

# The following section is used as base image if BASE_DISTRIBUTION=distroless
# This image is a custom built debian11 distroless image with multiarchitecture support.

- CAP_SYS_ADMIN
- CAP_NET_ADMIN
- CAP_NET_RAW

## Ambient mode details

Fundamentally, this component is responsible for the following:

- Sets up redirection with newly-started (or newly-added, previously-started) application pods such that traffic from application pods is forwarded to the local node's ztunnel pod.

COPY --from=distroless_source /home/nonroot /home/nonroot
RUN echo istio-proxy:x:1337: >> /home/etc/group
RUN echo istio-proxy:x:1337:1337:istio-proxy:/nonexistent:/sbin/nologin >> /home/etc/passwd

# Customize distroless with the following:
# - password file
# - groups file
# - /home/nonroot directory
FROM distroless_source
COPY --from=ubuntu_source /home/etc/passwd /etc/passwd
COPY --from=ubuntu_source /home/etc/group /etc/group

	var data string

	if isIpv4 {
		data = iptablesBuilder.BuildV4Restore()
	} else {
		data = iptablesBuilder.BuildV6Restore()
	}

	log.Infof("Running %s with the following input:\n%v", iptVer.CmdToString(cmd), strings.TrimSpace(data))
	// --noflush to prevent flushing/deleting previous contents from table
	return cfg.ext.Run(cmd, iptVer, strings.NewReader(data), "--noflush", "-v")
}

        - name: cni-netns-dir
          hostPath:
            path: {{ .Values.cni.cniNetnsDir | default "/var/run/netns" }}
            type: DirectoryOrCreate # DirectoryOrCreate instead of Directory for the following reason - CNI may not bind mount this until a non-hostnetwork pod is scheduled on the node,
            # and we don't want to block CNI agent pod creation on waiting for the first non-hostnetwork pod.