* [PATCH 2/3] oci: Add automatic configuration script
2020-07-21 10:36 [PATCH 1/3] oci: Add detection for Oracle Cloud Michael Tremer
@ 2020-07-21 10:36 ` Michael Tremer
2020-07-21 10:36 ` [PATCH 3/3] smt: Do not disable SMT in virtual machines Michael Tremer
1 sibling, 0 replies; 3+ messages in thread
From: Michael Tremer @ 2020-07-21 10:36 UTC (permalink / raw)
To: development
[-- Attachment #1: Type: text/plain, Size: 11253 bytes --]
Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>
---
config/rootfiles/common/aarch64/initscripts | 1 +
config/rootfiles/common/armv5tel/initscripts | 1 +
config/rootfiles/common/i586/initscripts | 1 +
config/rootfiles/common/x86_64/initscripts | 1 +
src/initscripts/helper/oci-setup | 308 +++++++++++++++++++
5 files changed, 312 insertions(+)
create mode 100644 src/initscripts/helper/oci-setup
diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
index 330bb532e..8140b9073 100644
--- a/config/rootfiles/common/aarch64/initscripts
+++ b/config/rootfiles/common/aarch64/initscripts
@@ -5,6 +5,7 @@ etc/rc.d/helper/aws-setup
etc/rc.d/helper/azure-setup
etc/rc.d/helper/gcp-setup
etc/rc.d/helper/getdnsfromdhcpc.pl
+etc/rc.d/helper/oci-setup
#etc/rc.d/init.d
etc/rc.d/init.d/acpid
etc/rc.d/init.d/apache
diff --git a/config/rootfiles/common/armv5tel/initscripts b/config/rootfiles/common/armv5tel/initscripts
index 330bb532e..8140b9073 100644
--- a/config/rootfiles/common/armv5tel/initscripts
+++ b/config/rootfiles/common/armv5tel/initscripts
@@ -5,6 +5,7 @@ etc/rc.d/helper/aws-setup
etc/rc.d/helper/azure-setup
etc/rc.d/helper/gcp-setup
etc/rc.d/helper/getdnsfromdhcpc.pl
+etc/rc.d/helper/oci-setup
#etc/rc.d/init.d
etc/rc.d/init.d/acpid
etc/rc.d/init.d/apache
diff --git a/config/rootfiles/common/i586/initscripts b/config/rootfiles/common/i586/initscripts
index c0fc18705..4ec56f700 100644
--- a/config/rootfiles/common/i586/initscripts
+++ b/config/rootfiles/common/i586/initscripts
@@ -5,6 +5,7 @@ etc/rc.d/helper/aws-setup
etc/rc.d/helper/azure-setup
etc/rc.d/helper/gcp-setup
etc/rc.d/helper/getdnsfromdhcpc.pl
+etc/rc.d/helper/oci-setup
#etc/rc.d/init.d
etc/rc.d/init.d/acpid
etc/rc.d/init.d/apache
diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
index c0fc18705..4ec56f700 100644
--- a/config/rootfiles/common/x86_64/initscripts
+++ b/config/rootfiles/common/x86_64/initscripts
@@ -5,6 +5,7 @@ etc/rc.d/helper/aws-setup
etc/rc.d/helper/azure-setup
etc/rc.d/helper/gcp-setup
etc/rc.d/helper/getdnsfromdhcpc.pl
+etc/rc.d/helper/oci-setup
#etc/rc.d/init.d
etc/rc.d/init.d/acpid
etc/rc.d/init.d/apache
diff --git a/src/initscripts/helper/oci-setup b/src/initscripts/helper/oci-setup
new file mode 100644
index 000000000..aca09e673
--- /dev/null
+++ b/src/initscripts/helper/oci-setup
@@ -0,0 +1,308 @@
+#!/bin/bash
+
+. /etc/sysconfig/rc
+. ${rc_functions}
+
+# Set PATH to find our own executables
+export PATH=/usr/local/sbin:/usr/local/bin:${PATH}
+
+# GCP only supports an MTU of 1460
+DEFAULT_MTU=1460
+
+get() {
+ local file="${1}"
+
+ wget -qO - "http://169.254.169.254/opc/v1/${file}"
+}
+
+to_address() {
+ local n="${1}"
+
+ local o1=$(( (n & 0xff000000) >> 24 ))
+ local o2=$(( (n & 0xff0000) >> 16 ))
+ local o3=$(( (n & 0xff00) >> 8 ))
+ local o4=$(( (n & 0xff) ))
+
+ printf "%d.%d.%d.%d\n" "${o1}" "${o2}" "${o3}" "${o4}"
+}
+
+to_integer() {
+ local address="${1}"
+
+ local integer=0
+
+ local i
+ for i in ${address//\./ }; do
+ integer=$(( (integer << 8) + i ))
+ done
+
+ printf "%d\n" "${integer}"
+}
+
+prefix2netmask() {
+ local prefix=${1}
+
+ local zeros=$(( 32 - prefix ))
+ local netmask=0
+
+ local i
+ for (( i=0; i<${zeros}; i++ )); do
+ netmask=$(( (netmask << 1) ^ 1 ))
+ done
+
+ to_address "$(( netmask ^ 0xffffffff ))"
+}
+
+oci_list_interfaces() {
+ get "vnics/" | python3 -c "import json, sys; print(\"\n\".join([vnic[\"vnicId\"] for vnic in json.load(sys.stdin)]))"
+}
+
+oci_get_interface_param() {
+ local id="${1}"
+ local param="${2}"
+
+ get "vnics/" | python3 -c "import json, sys; print(\"\n\".join(vnic.get(\"${param}\", \"\") for vnic in json.load(sys.stdin) if vnic[\"vnicId\"] == \"${id}\"))"
+}
+
+import_oci_configuration() {
+ local instance_id="$(get instance/id)"
+
+ boot_mesg "Importing Oracle Cloud Infrastructure configuration for instance ${instance_id}..."
+
+ # Store instance ID
+ echo "${instance_id}" > /var/run/oci-instance-id
+
+ # Initialise system settings
+ local hostname=$(get instance/hostname)
+
+ # Set hostname
+ if ! grep -q "^HOSTNAME=" /var/ipfire/main/settings; then
+ echo "HOSTNAME=${hostname%%.*}" >> /var/ipfire/main/settings
+ fi
+
+ # Set domainname
+ if ! grep -q "^DOMAINNAME=" /var/ipfire/main/settings; then
+ echo "DOMAINNAME=${hostname#*.}" >> /var/ipfire/main/settings
+ fi
+
+ # Create setup user
+ if ! getent passwd setup &>/dev/null; then
+ useradd setup -s /usr/bin/run-setup -g nobody -m
+
+ # Unlock the account
+ usermod -p "x" setup
+ fi
+
+ # Import SSH keys for setup user
+ local line
+ while read -r line; do
+ # Strip the username part from the key
+ local key="${line#*:}"
+
+ if [ -n "${key}" ] && ! grep -q "^${key}$" "/home/setup/.ssh/authorized_keys" 2>/dev/null; then
+ mkdir -p "/home/setup/.ssh"
+ chmod 700 "/home/setup/.ssh"
+ chown setup.nobody "/home/setup/.ssh"
+
+ echo "${key}" >> "/home/setup/.ssh/authorized_keys"
+ chmod 600 "/home/setup/.ssh/authorized_keys"
+ chown setup.nobody "/home/setup/.ssh/authorized_keys"
+ fi
+ done <<<"$(get instance/metadata/ssh_authorized_keys)"
+
+ # Download the user-data script only on the first boot
+ if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
+ # Download a startup script
+ local script="$(get instance/metadata/user_data)"
+
+ # Execute the script
+ if [ "${script:0:2}" = "#!" ]; then
+ echo "${script}" > /tmp/user-data.script
+ chmod 700 /tmp/user-data.script
+
+ # Run the script
+ local now="$(date -u +"%s")"
+ /tmp/user-data.script &>/var/log/user-data.log.${now}
+
+ # Delete the script right away
+ rm /tmp/user-data.script
+ fi
+ fi
+
+ # Import network configuration
+ # After this, no network connectivity will be available from this script due to the
+ # renaming of the network interfaces for which they have to be shut down
+ local config_type=1
+ : > /var/ipfire/ethernet/settings
+
+ local id
+ for id in $(oci_list_interfaces); do
+ local mac="$(oci_get_interface_param "${id}" "macAddr")"
+
+ # First IPv4 address
+ local ipv4_address="$(oci_get_interface_param "${id}" "privateIp")"
+ local ipv4_address_num="$(to_integer "${ipv4_address}")"
+
+ local subnet="$(oci_get_interface_param "${id}" "subnetCidrBlock")"
+ local prefix="${subnet#*/}"
+
+ local netmask="$(prefix2netmask "${prefix}")"
+ local netmask_num="$(to_integer "${netmask}")"
+
+ # Calculate the network and broadcast addresses
+ local netaddress="${subnet%/*}"
+ local broadcast="$(to_address $(( ipv4_address_num | (0xffffffff ^ netmask_num) )))"
+
+ local index="$(oci_get_interface_param "${id}" "nicIndex")"
+
+ # Set index to zero if it was empty
+ if [ -z "${index}" ]; then
+ index=0
+ fi
+
+ case "${index}" in
+ # RED
+ 0)
+ local interface_name="red0"
+ local gateway="$(oci_get_interface_param "${id}" "virtualRouterIp")"
+
+ (
+ echo "RED_TYPE=STATIC"
+ echo "RED_DEV=${interface_name}"
+ echo "RED_MACADDR=${mac}"
+ echo "RED_DESCRIPTION='${id}'"
+ echo "RED_ADDRESS=${ipv4_address}"
+ echo "RED_NETMASK=${netmask}"
+ echo "RED_NETADDRESS=${netaddress}"
+ echo "RED_BROADCAST=${broadcast}"
+ echo "RED_MTU=1500"
+ echo "DEFAULT_GATEWAY=${gateway}"
+ ) >> /var/ipfire/ethernet/settings
+
+ # Import aliases for RED
+ #for alias in $(get "instance/network-interfaces/${device_number}/ip-aliases"); do
+ # echo "${alias},on,"
+ #done > /var/ipfire/ethernet/aliases
+ ;;
+
+ # GREEN
+ 1)
+ local interface_name="green0"
+
+ (
+ echo "GREEN_DEV=${interface_name}"
+ echo "GREEN_MACADDR=${mac}"
+ echo "GREEN_DESCRIPTION='${id}'"
+ echo "GREEN_ADDRESS=${ipv4_address}"
+ echo "GREEN_NETMASK=${netmask}"
+ echo "GREEN_NETADDRESS=${netaddress}"
+ echo "GREEN_BROADCAST=${broadcast}"
+ echo "GREEN_MTU=${DEFAULT_MTU}"
+ ) >> /var/ipfire/ethernet/settings
+ ;;
+
+ # ORANGE
+ 2)
+ local interface_name="orange0"
+ config_type=2
+
+ (
+ echo "ORANGE_DEV=${interface_name}"
+ echo "ORANGE_MACADDR=${mac}"
+ echo "ORANGE_DESCRIPTION='${id}'"
+ echo "ORANGE_ADDRESS=${ipv4_address}"
+ echo "ORANGE_NETMASK=${netmask}"
+ echo "ORANGE_NETADDRESS=${netaddress}"
+ echo "ORANGE_BROADCAST=${broadcast}"
+ echo "ORANGE_MTU=${DEFAULT_MTU}"
+ ) >> /var/ipfire/ethernet/settings
+ ;;
+ esac
+ done
+
+ # Save CONFIG_TYPE
+ echo "CONFIG_TYPE=${config_type}" >> /var/ipfire/ethernet/settings
+
+ # Actions performed only on the very first start
+ if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
+ # Disable using ISP nameservers
+ sed -e "s/^USE_ISP_NAMESERVERS=.*/USE_ISP_NAMESERVERS=off/" -i /var/ipfire/dns/settings
+
+ # Enable SSH
+ sed -e "s/ENABLE_SSH=.*/ENABLE_SSH=on/g" -i /var/ipfire/remote/settings
+
+ # Disable SSH password authentication
+ sed -e "s/^ENABLE_SSH_PASSWORDS=.*/ENABLE_SSH_PASSWORDS=off/" -i /var/ipfire/remote/settings
+
+ # Enable SSH key authentication
+ sed -e "s/^ENABLE_SSH_KEYS=.*/ENABLE_SSH_KEYS=on/" -i /var/ipfire/remote/settings
+
+ # Apply SSH settings
+ /usr/local/bin/sshctrl
+
+ # Mark SSH to start immediately (but not right now)
+ touch /var/ipfire/remote/enablessh
+ chown nobody:nobody /var/ipfire/remote/enablessh
+
+ # Firewall rules for SSH and WEBIF
+ (
+ echo "1,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,cust_srv,SSH,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
+ echo "2,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,TGT_PORT,444,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
+ ) >> /var/ipfire/firewall/input
+
+ # This script has now completed the first steps of setup
+ touch /var/ipfire/main/firstsetup_ok
+ fi
+
+ # All done
+ echo_ok
+}
+
+case "${reason}" in
+ PREINIT)
+ # Bring up the interface
+ ip link set "${interface}" up
+ ;;
+
+ BOUND|RENEW|REBIND|REBOOT)
+ # Remove any previous IP addresses
+ ip addr flush dev "${interface}"
+
+ # Add (or re-add) the new IP address
+ ip addr add "${new_ip_address}/${new_subnet_mask}" dev "${interface}"
+
+ # Add the default route
+ ip route add "${new_routers}" dev "${interface}"
+ ip route add default via "${new_routers}"
+
+ # Setup DNS
+ for domain_name_server in ${new_domain_name_servers}; do
+ echo "nameserver ${domain_name_server}"
+ done > /etc/resolv.conf
+
+ # The system is online now
+ touch /var/ipfire/red/active
+
+ # Import OCI configuration
+ import_oci_configuration
+ ;;
+
+ EXPIRE|FAIL|RELEASE|STOP)
+ # The system is no longer online
+ rm -f /var/ipfire/red/active
+
+ # Remove all IP addresses
+ ip addr flush dev "${interface}"
+
+ # Shut down the interface
+ ip link set "${interface}" down
+ ;;
+
+ *)
+ echo "Unhandled reason: ${reason}" >&2
+ exit 2
+ ;;
+esac
+
+# Terminate
+exit 0
--
2.20.1
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