Making previous container curl create script a container get script.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>

3 files changed, 555 insertions, 0 deletions

diff --git a/share/get-scripts/curl b/share/get-scripts/curl
new file mode 100755
index 0000000..435e8e9
--- /dev/null
+++ b/share/get-scripts/curl
@@ -0,0 +1,490 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+PROJECT="open-infrastructure"
+SOFTWARE="compute-tools"
+PROGRAM="container"
+
+SCRIPT="${0}"
+export SCRIPT
+
+HOOKS="/etc/${SOFTWARE}/hooks"
+KEYS="/etc/${SOFTWARE}/keys"
+MACHINES="/var/lib/machines"
+
+Parameters ()
+{
+	GETOPT_LONGOPTIONS="bind:,bind-ro:,script:,name:,architecture:,clean,password:,server:,setup:,system:,"
+	GETOPT_OPTIONS="b:,s:,n:,a:,p:"
+
+	PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${SCRIPT} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
+
+	if [ "${?}" != "0" ]
+	then
+		echo "'${SCRIPT}': getopt exit" >&2
+		exit 1
+	fi
+
+	eval set -- "${PARAMETERS}"
+
+	while true
+	do
+		case "${1}" in
+			-b|--bind)
+				# ignore
+				shift 2
+				;;
+
+			--bind-ro)
+				# ignore
+				shift 2
+				;;
+
+			--cnt.auto)
+				# ignore
+				shift 2
+				;;
+
+			--cnt.container-server)
+				# ignore
+				shift 2
+				;;
+
+			-s|--script)
+				# ignore
+				shift 2
+				;;
+
+			-n|--name)
+				NAME="${2}"
+				shift 2
+				;;
+
+			-a|--architecture)
+				ARCHITECTURE="${2}"
+				shift 2
+				;;
+
+			--clean)
+				CLEAN="true"
+				shift 1
+				;;
+
+			-p|--password)
+				PASSWORD="${2}"
+				shift 2
+				;;
+
+			--server)
+				SERVER="${2}"
+				shift 2
+				;;
+
+			--setup)
+				SETUP="${2}"
+				shift 2
+				;;
+
+			--system)
+				SYSTEM="${2}"
+				shift 2
+				;;
+
+			--)
+				shift 1
+				break
+				;;
+
+			*)
+				echo "'${SCRIPT}': getopt error" >&2
+				exit 1
+				;;
+		esac
+	done
+}
+
+Usage ()
+{
+	echo "Usage: container get -n|--name NAME -s|--script ${SCRIPT} -- [--clean] [-p|--password PASSWORD] [--server SERVER] [--setup SETUP] [--system SYSTEM]" >&2
+	exit 1
+}
+
+Parameters "${@}"
+
+if [ -z "${NAME}" ]
+then
+	Usage
+fi
+
+if [ -e "${MACHINES}/${NAME}" ]
+then
+	echo "'${NAME}': container already exists" >&2
+	exit 1
+fi
+
+if [ ! -x /usr/bin/curl ]
+then
+	echo "'${NAME}': /usr/bin/curl - no such file." >&2
+	exit 1
+fi
+
+if [ "$(id -u)" -ne 0 ]
+then
+	echo "'${NAME}': need root privileges" >&2
+	exit 1
+fi
+
+COMPRESSIONS=""
+
+if [ -x /usr/bin/lzip ]
+then
+	COMPRESSIONS="${COMPRESSIONS} lz"
+fi
+
+if [ -x /usr/bin/xz ]
+then
+	COMPRESSIONS="${COMPRESSIONS} xz"
+fi
+
+if [ -x /bin/gzip ]
+then
+	COMPRESSIONS="${COMPRESSIONS} gz"
+fi
+
+if [ -z "${COMPRESSIONS}" ]
+then
+	echo "'${NAME}': no supported compressor available (lz, xz, gz)."
+	exit 1
+fi
+
+SERVER="${SERVER:-https://get.open-infrastructure.net/system/container/debian}"
+PASSWORD="${PASSWORD:-$(dd if=/dev/urandom bs=12 count=1 2> /dev/null | base64)}"
+CACHE="/var/cache/${PROGRAM}/get-$(basename ${SCRIPT})/$(echo ${SERVER} | sed -e 's|.*//||' -e 's|/|_|g')"
+
+VERSION="$(container version)"
+
+Debconf ()
+{
+	# Configure local debconf
+	mkdir -p "${DEBCONF_TMPDIR}/debconf"
+
+cat > "${DEBCONF_TMPDIR}/debconf.systemrc" << EOF
+Config: configdb
+Templates: templatedb
+
+Name: config
+Driver: File
+Mode: 644
+Reject-Type: password
+Filename: ${DEBCONF_TMPDIR}/debconf/config.dat
+
+Name: passwords
+Driver: File
+Mode: 600
+Backup: false
+Required: false
+Accept-Type: password
+Filename: ${DEBCONF_TMPDIR}/debconf/passwords.dat
+
+Name: configdb
+Driver: Stack
+Stack: config, passwords
+
+Name: templatedb
+Driver: File
+Mode: 644
+Filename: ${DEBCONF_TMPDIR}/debconf/templates.dat
+EOF
+
+	DEBCONF_SYSTEMRC="${DEBCONF_TMPDIR}/debconf.systemrc"
+	export DEBCONF_SYSTEMRC
+}
+
+# Pre hooks
+for FILE in "${HOOKS}/pre-${SCRIPT}".* "${HOOKS}/${NAME}.pre-${SCRIPT}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
+# Run
+
+# FIXME: default server via configuration file
+
+CURL_OPTIONS=""
+
+if curl -V | grep -qs http2
+then
+	CURL_OPTIONS="${CURL_OPTIONS} --http2"
+fi
+
+if [ -z "${SYSTEM}" ]
+then
+	# Downloading container list
+	if curl --fail --head --output /dev/null --silent "${SERVER}/container-list.txt"
+	then
+		mkdir -p "/tmp/${SOFTWARE}"
+		DEBCONF_TMPDIR="$(mktemp -d -p "/tmp/${SOFTWARE}" -t $(basename ${0}).XXXX)"
+		export DEBCONF_TMPDIR
+
+		if [ -z "${ARCHITECTURE}" ]
+		then
+			case "$(dpkg --print-architecture)" in
+				amd64)
+					GREP_PATTERN="(amd64|i386)"
+					;;
+			esac
+		fi
+
+		GREP_PATTERN="${GREP_PATTERN:-${ARCHITECTURE}}"
+
+		echo "Downloading $(echo ${SERVER} | awk -F/ '{ print $3 }') container list"
+		curl	--fail --location --progress-bar --user-agent ${SOFTWARE}/${VERSION} ${CURL_OPTIONS} \
+			"${SERVER}/container-list.txt" | grep -E "${GREP_PATTERN}" > "${DEBCONF_TMPDIR}/container-list.txt"
+
+		umask 0022
+
+		Debconf
+
+		# Run debconf parts
+		for DEBCONF_SCRIPT in /usr/share/${SOFTWARE}/get-scripts/curl.d/*
+		do
+			if [ -x "${DEBCONF_SCRIPT}" ]
+			then
+				"${DEBCONF_SCRIPT}"
+			fi
+		done
+
+		# Read-in configuration from debconf
+		. "${DEBCONF_TMPDIR}/debconf.default"
+
+		# Remove debconf temporary files
+		rm --preserve-root --one-file-system -rf "${DEBCONF_TMPDIR}"
+		rmdir --ignore-fail-on-non-empty "/tmp/${SOFTWARE}" 2>&1 || true
+	fi
+fi
+
+for COMPRESSION in ${COMPRESSIONS}
+do
+	if curl --fail --head --output /dev/null --silent "${SERVER}/${SYSTEM}.${COMPRESSION}"
+	then
+		SYSTEM="${SYSTEM}.${COMPRESSION}"
+		break
+	fi
+done
+
+# Downloading container files
+mkdir -p "${CACHE}"
+
+SETUP="${SETUP:-$(echo ${SYSTEM} | sed -e 's|.system.tar.|.setup.tar.|')}"
+
+for FILE in	"${SYSTEM}" "${SYSTEM}.sign" "${SYSTEM}.sha512" \
+		"${SETUP}" "${SETUP}.sign" "${SETUP}.sha512"
+do
+	if curl --fail --head --output /dev/null --silent "${SERVER}/${FILE}"
+	then
+		case "${FILE}" in
+			*.sha512)
+				if [ -e "${CACHE}/$(basename ${FILE} .sha512).sign" ]
+				then
+					continue
+				fi
+				;;
+		esac
+
+		if [ -e "${CACHE}/${FILE}" ]
+		then
+			CURL_TIME_COND="--time-cond ${CACHE}/${FILE}"
+		else
+			CURL_TIME_COND=""
+		fi
+
+		echo "Downloading ${FILE}"
+		curl	--fail --location --progress-bar --user-agent ${SOFTWARE}/${VERSION} ${CURL_OPTIONS} ${CURL_TIME_COND} \
+			"${SERVER}/${FILE}" -o "${CACHE}/${FILE}"
+	fi
+done
+
+cd "${CACHE}"
+
+for FILE in "${SYSTEM}" "${SETUP}"
+do
+	if [ ! -e "${FILE}" ]
+	then
+		continue
+	fi
+
+	if [ -e "${FILE}.sign" ]
+	then
+		echo -n "Verifying ${FILE}:"
+
+		set +e
+		gpg --homedir "${KEYS}" --verify "${FILE}.sign" "${FILE}" > /dev/null 2>&1
+		GNUPG="${?}"
+		set -e
+
+		case "${GNUPG}" in
+			0)
+				echo " gpg ok."
+				continue
+				;;
+
+			*)
+				echo " gpg failed."
+				exit 1
+				;;
+		esac
+	elif [ -e "${FILE}.sha512" ]
+	then
+		echo -n "Verifying ${FILE}:"
+
+		set +e
+		sha512sum --check "${FILE}.sha512" --status
+		SHA512SUM="${?}"
+		set -e
+
+		case "${SHA512SUM}" in
+			0)
+				echo " sha512 ok."
+				;;
+
+			*)
+				echo " sha512 failed."
+				exit 1
+				;;
+		esac
+	fi
+done
+
+cd "${OLDPWD}"
+
+case "${SYSTEM}" in
+	*.gz)
+		TAR_OPTIONS="--gzip"
+
+		if [ ! -e /bin/gzip ]
+		then
+			echo -en "\n"
+			echo "'${NAME}': /bin/lzip - no such file." >&2
+			exit 1
+		fi
+		;;
+
+	*.lz)
+		TAR_OPTIONS="--lzip"
+
+		if [ ! -e /usr/bin/lzip ]
+		then
+			echo -en "\n"
+			echo "'${NAME}': /usr/bin/lzip - no such file." >&2
+			exit 1
+		fi
+		;;
+
+	*.xz)
+		TAR_OPTIONS="--xz"
+
+		if [ ! -e /usr/bin/xz ]
+		then
+			echo -en "\n"
+			echo "'${NAME}': /usr/bin/xz - no such file." >&2
+			exit 1
+		fi
+		;;
+
+	*)
+		TAR_OPTIONS=""
+		;;
+esac
+
+for FILE in "${SYSTEM}" "${SETUP}"
+do
+	if [ ! -e "${CACHE}/${FILE}" ]
+	then
+		continue
+	fi
+
+	case "${FILE}" in
+		*.system.tar.*)
+			DIRECTORY="${MACHINES}/${NAME}"
+			;;
+
+		*.setup.tar.*)
+			DIRECTORY="${MACHINES}/${NAME}/setup"
+			;;
+	esac
+
+	mkdir -p "${DIRECTORY}"
+
+	if [ -e /usr/bin/pv ]
+	then
+		echo "Unpacking ${FILE}"
+		pv --format '%p' --width 77 "${CACHE}/${FILE}" | tar xf - ${TAR_OPTIONS} -C "${DIRECTORY}" --strip 1
+	else
+		echo -n "Unpacking ${FILE}:"
+		tar xf "${CACHE}/${FILE}" ${TAR_OPTIONS} -C "${DIRECTORY}" --strip 1
+		echo " ok."
+	fi
+done
+
+if [ -x "${MACHINES}/${NAME}/setup/container" ]
+then
+	chroot "${MACHINES}/${NAME}" /usr/bin/env -i \
+		LC_ALL="C" PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games" TERM="${TERM}" \
+		DEBIAN_FRONTEND="dialog" DEBIAN_PRIORITY="low" \
+		DEBCONF_NONINTERACTIVE_SEEN="true" DEBCONF_NOWARNINGS="true" \
+		NAME="${NAME}" \
+		/setup/container
+
+	rm -rf "${MACHINES}/${NAME}/setup"
+fi
+
+# Creating machine-id
+chroot "${MACHINES}/${NAME}" systemd-machine-id-setup > /dev/null 2>&1
+
+# Setting hostname
+echo "${NAME}" > "${MACHINES}/${NAME}/etc/hostname"
+
+# Copying resolv.conf
+cp -L /etc/resolv.conf "${MACHINES}/${NAME}/etc/resolv.conf"
+
+# Setting root password
+echo root:${PASSWORD} | chroot "${MACHINES}/${NAME}" chpasswd
+echo "${NAME}: root password set to '${PASSWORD}'."
+
+# Remove cache
+case "${CLEAN}" in
+	true)
+		rm -f "${CACHE}/${SYSTEM}" "${CACHE}/${SYSTEM}.sha512"
+		rm -f "${CACHE}/${SETUP}" "${CACHE}/${SETUP}.sha512"
+		;;
+esac
+
+# Post hooks
+for FILE in "${HOOKS}/post-${SCRIPT}".* "${HOOKS}/${NAME}.post-${SCRIPT}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/share/get-scripts/curl.d/0001-debconf b/share/get-scripts/curl.d/0001-debconf
new file mode 100755
index 0000000..083d469
--- /dev/null
+++ b/share/get-scripts/curl.d/0001-debconf
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+DEBCONF_NOWARNINGS="true"
+export DEBCONF_NOWARNINGS
+
+. /usr/share/debconf/confmodule
+
+System ()
+{
+	TITLE="$(echo ${SERVER} | awk -F/ '{ print $3 }')"
+
+	SYSTEMS="$(for SYSTEM in $(cat ${DEBCONF_TMPDIR}/container-list.txt | cut -d\| -f2 | sed -e 's| |#|g'); do echo -n "$(echo ${SYSTEM} | sed -e 's|#| |g'), "; done | sed -e 's|, $||')"
+	SYSTEMS_C="$(for SYSTEM_C in $(cat ${DEBCONF_TMPDIR}/container-list.txt | cut -d\| -f1); do echo -n "${SYSTEM_C}, "; done | sed -e 's|, $||')"
+
+	db_subst cnt-curl/title TITLE "${TITLE}"
+
+	db_subst cnt-curl/system CHOICES "${SYSTEMS}"
+	db_subst cnt-curl/system CHOICES_C "${SYSTEMS_C}"
+
+	db_fset cnt-curl/system seen false
+
+	db_settitle cnt-curl/title
+	db_input high cnt-curl/system || true
+	db_go
+
+	db_get cnt-curl/system
+	SYSTEM="${RET}" # select
+
+	echo "SYSTEM=\"${SYSTEM}\"" >> "${DEBCONF_TMPDIR}/debconf.default"
+	export SYSTEM
+}
+
+System
+
+db_stop
diff --git a/share/get-scripts/curl.d/0001-debconf.templates b/share/get-scripts/curl.d/0001-debconf.templates
new file mode 100644
index 0000000..c63994d
--- /dev/null
+++ b/share/get-scripts/curl.d/0001-debconf.templates
@@ -0,0 +1,11 @@
+Template: cnt-curl/title
+Type: title
+Description: ${TITLE}
+
+Template: cnt-curl/system
+Type: select
+Default:
+Choices-C: ${CHOICES_C}
+Choices: ${CHOICES}
+Description: Container list:
+ Select the system to use for downloading the container.