setup_raspberrypi_co2mon.sh

#!/bin/sh

#
# USAGE 使い方:
#   pi@raspberrypi$ export GITHUB_USERNAME=<your username>
#   pi@raspberrypi$ export NEW_HOSTNAME=<new hostname>
#   pi@raspberrypi$ export SSH_RPFW_SERVER=<new hostname>
#   pi@raspberrypi$ export SSH_RPFW_SERVER_PORT=<new hostname>
#   pi@raspberrypi$ export SSH_RPFW_PORT=<new hostname>
#   pi@raspberrypi$ export SSH_RPFW_HOST_KEY=<new hostname>
#   pi@raspberrypi$ export SSH_RPFW_HOST_KEY_TYPE=<new hostname>
#   pi@raspberrypi$ curl -s https://gist.githubusercontent.com/miminashi/a441c12cd605df12414c47c453b64d44/raw | sh -s
#

set -eu

# 環境変数チェック
: ${GITHUB_USERNAME}
: ${NEW_HOSTNAME}

# Docker
curl -fsSL https://get.docker.com -o /tmp/get-docker.sh
sudo sh /tmp/get-docker.sh
sudo usermod -aG docker pi

# ssh
mkdir -p /home/pi/.ssh
curl https://github.com/${GITHUB_USERNAME}.keys > /home/pi/.ssh/authorized_keys
chmod 600 /home/pi/.ssh/authorized_keys

# ssh鍵ペアの生成
ssh-keygen -t ed25519 -f /home/pi/.ssh/id_ed25519 -P ''

# sshリバースフォワードの設定
#if [ -n "${SSH_RPFW_SERVER-}" ] && [ -n "${SSH_RPFW_PORT-}" ]; then
if [ -n "${SSH_RPFW_SERVER-}" ] && [ -n "${SSH_RPFW_SERVER_PORT-}" ] && [ -n "${SSH_RPFW_PORT-}" ] && [ -n "${SSH_RPFW_HOST_KEY-}" ] && [ -n "${SSH_RPFW_HOST_KEY_TYPE-}" ]; then
  sudo tee /etc/systemd/system/ssh-rpfw.service <<EOF
[Unit]
Description=ssh reverse port forwarding service
After=network.target auditd.service

[Service]
User=pi
Group=pi
WorkingDirectory=/home/pi
ExecStart=/usr/bin/ssh -o ServerAliveInterval=5 -o ServerAliveCountMax=3 -o ExitOnForwardFailure=yes -o TCPKeepAlive=no -N -R ${SSH_RPFW_PORT}:127.0.0.1:22 -i /home/pi/.ssh/id_ed25519 -p ${SSH_RPFW_SERVER_PORT} debian@${SSH_RPFW_SERVER}
Restart=always
RestartSec=1
StartLimitBurst=0

[Install]
WantedBy=multi-user.target
EOF
  sudo systemctl enable ssh-rpfw.service
  printf '[%s]:%s %s %s\n' "${SSH_RPFW_SERVER}" "${SSH_RPFW_SERVER_PORT}" "${SSH_RPFW_HOST_KEY_TYPE}" "${SSH_RPFW_HOST_KEY}" | sudo tee /etc/ssh/ssh_known_hosts > /dev/null
fi

# GNU screen
sudo apt-get update
sudo apt-get -y install screen
cat <<'EOF' > /home/pi/.screenrc
startup_message off
vbell off
caption always "  %n %t  $USER@%H"
termcapinfo xterm* ti@:te@
term xterm-color
shell bash
EOF

# POSIX compatibility
# POSIX互換性のための設定
sudo apt-get -y install bc pax ncompress

# other utility
# その他のユーティリティ
sudo apt-get -y install vim

# sshd
sudo tee /etc/ssh/sshd_config > /dev/null <<'EOF'
#       $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj 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 no
#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 no
#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
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none

# no default banner path
#Banner none

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

# override default of no subsystems
Subsystem       sftp    /usr/lib/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#       X11Forwarding no
#       AllowTcpForwarding no
#       PermitTTY no
#       ForceCommand cvs server
EOF

# DHCPクライアントの設定
sudo tee /etc/dhcpcd.conf > /dev/null <<'EOF'
hostname
clientid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option interface_mtu
require dhcp_server_identifier
slaac private
noipv6
noipv6rs
static domain_name_servers=8.8.8.8 8.8.4.4
EOF

# co2mon
sudo tee /etc/systemd/system/co2mon.service > /dev/null <<'EOF'
[Unit]
Description=co2mon container service
After=network.target auditd.service

[Service]
#WorkingDirectory=/workdir
ExecStart=docker run --privileged --rm -v /var/local/co2mon:/var/local/co2mon --name co2mon co2mon /sbin/init
ExecStop=docker stop co2mon
Restart=always
RestartSec=1
StartLimitBurst=0

[Install]
WantedBy=multi-user.target
EOF
sudo systemctl enable co2mon.service

# ホスト名の設定
sudo raspi-config nonint do_hostname "${NEW_HOSTNAME}"


echo ""
echo "----------------------------"
echo "${NEW_HOSTNAME} のssh公開鍵:"
cat ~/.ssh/id_ed25519.pub