src/initscripts/helper/exoscale-setup

   1 #!/bin/bash
   2
   3 . /etc/sysconfig/rc
   4 . ${rc_functions}
   5
   6 # Set PATH to find our own executables
   7 export PATH=/usr/local/sbin:/usr/local/bin:${PATH}
   8
   9 # Exoscale only supports a MTU of 1500
  10 DEFAULT_MTU=1500
  11
  12 get() {
  13         local file="${1}"
  14
  15         wget -qO - "http://metadata.exoscale.com/latest/${file}"
  16 }
  17
  18 import_exoscale_configuration() {
  19         local instance_id="$(get meta-data/instance-id)"
  20
  21         boot_mesg "Importing Exoscale configuration for instance ${instance_id}..."
  22
  23         # Store instance ID
  24         echo "${instance_id}" > /var/run/exoscale-instance-id
  25
  26         # Initialise system settings
  27         local hostname=$(get meta-data/local-hostname)
  28
  29         # Set hostname
  30         if ! grep -q "^HOSTNAME=" /var/ipfire/main/settings; then
  31                 echo "HOSTNAME=${hostname%%.*}" >> /var/ipfire/main/settings
  32         fi
  33
  34         # Set domainname
  35         if ! grep -q "^DOMAINNAME=" /var/ipfire/main/settings; then
  36                 local domainname="localdomain"
  37
  38                 # If the hostname contains a dot we strip the last
  39                 # part and use it as our domain name
  40                 if [[ ${hostname} =~ "\." ]]; then
  41                         domainname="${hostname#*.}"
  42                 fi
  43
  44                 echo "DOMAINNAME=${domainname}" >> /var/ipfire/main/settings
  45         fi
  46
  47         # Create setup user
  48         if ! getent passwd setup &>/dev/null; then
  49                 useradd setup -s /usr/bin/run-setup -g nobody -m
  50
  51                 # Unlock the account
  52                 usermod -p "x" setup
  53         fi
  54
  55         # Import SSH key for setup user
  56         local key=$(get "meta-data/public-keys")
  57         if [ -n "${key}" ] && ! grep -q "^${key}$" "/home/setup/.ssh/authorized_keys" 2>/dev/null; then
  58                 mkdir -p "/home/setup/.ssh"
  59                 chmod 700 "/home/setup/.ssh"
  60                 chown setup.nobody "/home/setup/.ssh"
  61
  62                 echo "${key}" >> "/home/setup/.ssh/authorized_keys"
  63                 chmod 600 "/home/setup/.ssh/authorized_keys"
  64                 chown setup.nobody "/home/setup/.ssh/authorized_keys"
  65         fi
  66
  67         # Download the user-data script only on the first boot
  68         if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
  69                 # Download user-data
  70                 local user_data="$(get user-data)"
  71
  72                 # Save user-data script to be executed later
  73                 if [ "${user_data:0:2}" = "#!" ]; then
  74                         echo "${user_data}" > /tmp/user-data.script
  75                         chmod 700 /tmp/user-data.script
  76
  77                         # Run the user-data script
  78                         local now="$(date -u +"%s")"
  79                         /tmp/user-data.script &>/var/log/user-data.log.${now}
  80
  81                         # Delete the script right away
  82                         rm /tmp/user-data.script
  83                 fi
  84         fi
  85
  86         # Import any previous settings for the local interfaces
  87          eval $(/usr/local/bin/readhash <(grep -E "^(GREEN|ORANGE)_.*=" /var/ipfire/ethernet/settings 2>/dev/null))
  88
  89         # Import network configuration
  90         # After this, no network connectivity will be available from this script due to the
  91         # renaming of the network interfaces for which they have to be shut down
  92         local config_type=1
  93         : > /var/ipfire/ethernet/settings
  94
  95         local device
  96         for device in /sys/class/net/*; do
  97                 # Fetch the interface index
  98                 local ifindex="$(<${device}/ifindex)"
  99                 local address="$(<${device}/address)"
 100
 101                 case "${ifindex}" in
 102                         # loopback
 103                         1)
 104                                 continue
 105                                 ;;
 106
 107                         # The first interface will always be the public-facing one (i.e. RED)
 108                         2)
 109                                 (
 110                                         echo "RED_TYPE=DHCP"
 111                                         echo "RED_DEV=red0"
 112                                         echo "RED_MACADDR=${address}"
 113                                         echo "RED_DESCRIPTION='${ifindex}'"
 114                                         echo "RED_MTU=1500"
 115                                 ) >> /var/ipfire/ethernet/settings
 116                                 ;;
 117
 118                         # GREEN
 119                         3)
 120                                 # Set some sensible defaults for GREEN
 121                                 if [ -z "${GREEN_ADDRESS}" ]; then
 122                                         GREEN_ADDRESS="10.0.0.1"
 123                                         GREEN_NETMASK="255.255.255.0"
 124                                         GREEN_NETADDRESS="10.0.0.0"
 125                                         GREEN_BROADCAST="10.0.0.255"
 126                                 fi
 127
 128                                 (
 129                                         echo "GREEN_DEV=green0"
 130                                         echo "GREEN_MACADDR=${address}"
 131                                         echo "GREEN_DESCRIPTION='${ifindex}'"
 132                                         echo "GREEN_ADDRESS=${GREEN_ADDRESS}"
 133                                         echo "GREEN_NETMASK=${GREEN_NETMASK}"
 134                                         echo "GREEN_NETADDRESS=${GREEN_NETADDRESS}"
 135                                         echo "GREEN_BROADCAST=${GREEN_BROADCAST}"
 136                                         echo "GREEN_MTU=${DEFAULT_MTU}"
 137                                 ) >> /var/ipfire/ethernet/settings
 138                                 ;;
 139
 140                         # ORANGE
 141                         4)
 142                                 config_type=2
 143
 144                                 # Set some sensible defaults for ORANGE
 145                                 if [ -z "${ORANGE_ADDRESS}" ]; then
 146                                         ORANGE_ADDRESS="10.0.1.1"
 147                                         ORANGE_NETMASK="255.255.255.0"
 148                                         ORANGE_NETADDRESS="10.0.1.0"
 149                                         ORANGE_BROADCAST="10.0.1.255"
 150                                 fi
 151
 152                                 (
 153                                         echo "ORANGE_DEV=orange0"
 154                                         echo "ORANGE_MACADDR=${address}"
 155                                         echo "ORANGE_DESCRIPTION='${ifindex}'"
 156                                         echo "ORANGE_ADDRESS=${ORANGE_ADDRESS}"
 157                                         echo "ORANGE_NETMASK=${ORANGE_NETMASK}"
 158                                         echo "ORANGE_NETADDRESS=${ORANGE_NETADDRESS}"
 159                                         echo "ORANGE_BROADCAST=${ORANGE_BROADCAST}"
 160                                         echo "ORANGE_MTU=${DEFAULT_MTU}"
 161                                 ) >> /var/ipfire/ethernet/settings
 162                                 ;;
 163                 esac
 164         done
 165
 166         # Save CONFIG_TYPE
 167         echo "CONFIG_TYPE=${config_type}" >> /var/ipfire/ethernet/settings
 168
 169         # Actions performed only on the very first start
 170         if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
 171                 # Disable using ISP nameservers
 172                 sed -e "s/^USE_ISP_NAMESERVERS=.*/USE_ISP_NAMESERVERS=off/" -i /var/ipfire/dns/settings
 173
 174                 # Enable SSH
 175                 sed -e "s/ENABLE_SSH=.*/ENABLE_SSH=on/g" -i /var/ipfire/remote/settings
 176
 177                 # Disable SSH password authentication
 178                 sed -e "s/^ENABLE_SSH_PASSWORDS=.*/ENABLE_SSH_PASSWORDS=off/" -i /var/ipfire/remote/settings
 179
 180                 # Enable SSH key authentication
 181                 sed -e "s/^ENABLE_SSH_KEYS=.*/ENABLE_SSH_KEYS=on/" -i /var/ipfire/remote/settings
 182
 183                 # Apply SSH settings
 184                 /usr/local/bin/sshctrl
 185
 186                 # Mark SSH to start immediately (but not right now)
 187                 touch /var/ipfire/remote/enablessh
 188                 chown nobody:nobody /var/ipfire/remote/enablessh
 189
 190                 # Firewall rules for SSH and WEBIF
 191                 (
 192                         echo "1,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,cust_srv,SSH,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
 193                         echo "2,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,TGT_PORT,444,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
 194                 ) >> /var/ipfire/firewall/input
 195
 196                 # This script has now completed the first steps of setup
 197                 touch /var/ipfire/main/firstsetup_ok
 198         fi
 199
 200         # All done
 201         echo_ok
 202 }
 203
 204 case "${reason}" in
 205         PREINIT)
 206                 # Bring up the interface
 207                 ip link set "${interface}" up
 208                 ;;
 209
 210         BOUND|RENEW|REBIND|REBOOT)
 211                 # Remove any previous IP addresses
 212                 ip addr flush dev "${interface}"
 213
 214                 # Add (or re-add) the new IP address
 215                 ip addr add "${new_ip_address}/${new_subnet_mask}" dev "${interface}"
 216
 217                 # Add the default route
 218                 ip route add default via "${new_routers}"
 219
 220                 # Setup DNS
 221                 for domain_name_server in ${new_domain_name_servers}; do
 222                         echo "nameserver ${domain_name_server}"
 223                 done > /etc/resolv.conf
 224
 225                 # The system is online now
 226                 touch /var/ipfire/red/active
 227
 228                 # Import Exoscale configuration
 229                 import_exoscale_configuration
 230                 ;;
 231
 232         EXPIRE|FAIL|RELEASE|STOP)
 233                 # The system is no longer online
 234                 rm -f /var/ipfire/red/active
 235
 236                 # Remove all IP addresses
 237                 ip addr flush dev "${interface}"
 238
 239                 # Shut down the interface
 240                 ip link set "${interface}" down
 241                 ;;
 242
 243         *)
 244                 echo "Unhandled reason: ${reason}" >&2
 245                 exit 2
 246                 ;;
 247 esac
 248
 249 # Terminate
 250 exit 0