Split unbound and resolver: use resolver in TP3

pkg/resolver/Dockerfile

@@ -0,0 +1,17 @@
+FROM alpine:3.15
+MAINTAINER Pierre-Olivier Mercier <nemunaire@nemunai.re>
+
+RUN apk add --no-cache alpine-baselayout bash busybox unbound unbound-openrc dnssec-root openssh openrc
+
+VOLUME /etc/unbound
+
+EXPOSE 53
+EXPOSE 53/udp
+
+RUN unbound-anchor && mkdir -p /var/log && touch /var/log/unbound.log && chown unbound:unbound /var/log/unbound.log
+RUN rc-update add unbound default && rc-update add sshd default && rc-update add networking default
+COPY sshd_config /etc/ssh/sshd_config
+
+CMD ["/sbin/openrc-init"]
+
+LABEL org.mobyproject.config='{"binds": ["/etc/resolv.conf:/etc/resolv.conf"], "capabilities": ["CAP_NET_BIND_SERVICE"]}'

pkg/resolver/build.yml

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+image: unbound
+network: true
+arches:
+- x86_64

pkg/resolver/docker-entrypoint.sh

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+#!/bin/sh
+
+set -e
+
+if [ `which unbound-$1 2>/dev/null` ]; then
+  set -- unbound-"$@"
+elif [ ! `which $1 2>/dev/null` ]; then
+  set -- unbound -dv "$@"
+fi
+
+unbound-anchor
+
+exec "$@"

pkg/resolver/sshd_config

@@ -0,0 +1,104 @@
+#	$OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $
+
+# This is the sshd server system-wide configuration file.  See
+# sshd_config(5) for more information.
+
+# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+# The strategy used for options in the default sshd_config shipped with
+# OpenSSH is to specify options with their default value where
+# possible, but leave them commented.  Uncommented options override the
+# default value.
+
+#Port 22
+#AddressFamily any
+#ListenAddress 0.0.0.0
+#ListenAddress ::
+
+#HostKey /etc/ssh/ssh_host_rsa_key
+#HostKey /etc/ssh/ssh_host_ecdsa_key
+#HostKey /etc/ssh/ssh_host_ed25519_key
+
+# Ciphers and keying
+#RekeyLimit default none
+
+# Logging
+#SyslogFacility AUTH
+#LogLevel INFO
+
+# Authentication:
+
+#LoginGraceTime 2m
+PermitRootLogin yes
+#StrictModes yes
+#MaxAuthTries 6
+#MaxSessions 10
+
+#PubkeyAuthentication yes
+
+# Expect .ssh/authorized_keys2 to be disregarded by default in future.
+#AuthorizedKeysFile	       .ssh/authorized_keys .ssh/authorized_keys2
+
+#AuthorizedPrincipalsFile none
+
+#AuthorizedKeysCommand none
+#AuthorizedKeysCommandUser nobody
+
+# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
+#HostbasedAuthentication no
+# Change to yes if you don't trust ~/.ssh/known_hosts for
+# HostbasedAuthentication
+#IgnoreUserKnownHosts no
+# Don't read the user's ~/.rhosts and ~/.shosts files
+#IgnoreRhosts yes
+
+# To disable tunneled clear text passwords, change to no here!
+#PasswordAuthentication yes
+#PermitEmptyPasswords no
+
+# Change to yes to enable challenge-response passwords (beware issues with
+# some PAM modules and threads)
+ChallengeResponseAuthentication no
+
+# Kerberos options
+#KerberosAuthentication no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+#KerberosGetAFSToken no
+
+# GSSAPI options
+#GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+#GSSAPIStrictAcceptorCheck yes
+#GSSAPIKeyExchange no
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication.  Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
+#UsePAM yes
+
+#AllowAgentForwarding yes
+#AllowTcpForwarding yes
+#GatewayPorts no
+X11Forwarding yes
+#X11DisplayOffset 10
+#X11UseLocalhost yes
+#PermitTTY yes
+PrintMotd no
+#PrintLastLog yes
+#TCPKeepAlive yes
+#UseLogin no
+#UsePrivilegeSeparation sandbox
+#PermitUserEnvironment no
+#Compression delayed
+#ClientAliveInterval 0
+#ClientAliveCountMax 3
+#UseDNS no
+#PidFile /var/run/sshd.pid
+#MaxStartups 10:30:100