LXC_ROOTFS=
if [ -z "${DOWNLOAD_KEYSERVER:-}" ]; then
- DOWNLOAD_KEYSERVER="hkp://pool.sks-keyservers.net"
+ DOWNLOAD_KEYSERVER="hkp://pool.sks-keyservers.net"
- # Deal with GPG over http proxy
- if [ -n "${http_proxy:-}" ]; then
- DOWNLOAD_KEYSERVER="hkp://p80.pool.sks-keyservers.net:80"
- fi
+ # Deal with GPG over http proxy
+ if [ -n "${http_proxy:-}" ]; then
+ DOWNLOAD_KEYSERVER="hkp://p80.pool.sks-keyservers.net:80"
+ fi
fi
# Make sure the usual locations are in PATH
# Some useful functions
cleanup() {
- if [ -d "${DOWNLOAD_TEMP}" ]; then
- rm -Rf "${DOWNLOAD_TEMP}"
- fi
+ if [ -d "${DOWNLOAD_TEMP}" ]; then
+ rm -Rf "${DOWNLOAD_TEMP}"
+ fi
}
wget_wrapper() {
- for i in $(seq 3); do
- if wget "$@"; then
- return 0
- fi
- done
+ for _ in $(seq 3); do
+ if wget "$@"; then
+ return 0
+ fi
+ done
- return 1
+ return 1
}
download_file() {
- if ! wget_wrapper -T 30 -q "https://${DOWNLOAD_SERVER}/$1" -O "$2" >/dev/null 2>&1; then
- if ! wget_wrapper -T 30 -q "http://${DOWNLOAD_SERVER}/$1" -O "$2" >/dev/null 2>&1; then
- if [ "$3" = "noexit" ]; then
- return 1
- else
- echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2
- exit 1
- fi
- elif [ "${DOWNLOAD_SHOW_HTTP_WARNING}" = "true" ]; then
- DOWNLOAD_SHOW_HTTP_WARNING="false"
- echo "WARNING: Failed to download the file over HTTPs." 1>&2
- echo " The file was instead download over HTTP. " 1>&2
- echo "A server replay attack may be possible!" 1>&2
- fi
+ if ! wget_wrapper -T 30 -q "https://${DOWNLOAD_SERVER}/$1" -O "$2" >/dev/null 2>&1; then
+ if ! wget_wrapper -T 30 -q "http://${DOWNLOAD_SERVER}/$1" -O "$2" >/dev/null 2>&1; then
+ if [ "$3" = "noexit" ]; then
+ return 1
+ else
+ echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2
+ exit 1
+ fi
+ elif [ "${DOWNLOAD_SHOW_HTTP_WARNING}" = "true" ]; then
+ DOWNLOAD_SHOW_HTTP_WARNING="false"
+ echo "WARNING: Failed to download the file over HTTPs" 1>&2
+ echo " The file was instead download over HTTP " 1>&2
+ echo "A server replay attack may be possible!" 1>&2
fi
+ fi
}
download_sig() {
- if ! download_file "$1" "$2" noexit; then
- if [ "${DOWNLOAD_VALIDATE}" = "true" ]; then
- if [ "$3" = "normal" ]; then
- echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2
- exit 1
- else
- return 1
- fi
- else
- return 0
- fi
+ if ! download_file "$1" "$2" noexit; then
+ if [ "${DOWNLOAD_VALIDATE}" = "true" ]; then
+ if [ "$3" = "normal" ]; then
+ echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2
+ exit 1
+ else
+ return 1
+ fi
+ else
+ return 0
fi
+ fi
}
gpg_setup() {
- if [ "${DOWNLOAD_VALIDATE}" = "false" ]; then
- return
+ if [ "${DOWNLOAD_VALIDATE}" = "false" ]; then
+ return
+ fi
+
+ if [ "${DOWNLOAD_READY_GPG}" = "true" ]; then
+ return
+ fi
+
+ echo "Setting up the GPG keyring"
+
+ mkdir -p "${DOWNLOAD_TEMP}/gpg"
+ chmod 700 "${DOWNLOAD_TEMP}/gpg"
+ export GNUPGHOME="${DOWNLOAD_TEMP}/gpg"
+
+ success=
+ for _ in $(seq 3); do
+ if gpg --keyserver "${DOWNLOAD_KEYSERVER}" \
+ --recv-keys "${DOWNLOAD_KEYID}" >/dev/null 2>&1; then
+ success=1
+ break
fi
+ break
+ done
- if [ "${DOWNLOAD_READY_GPG}" = "true" ]; then
- return
- fi
-
- echo "Setting up the GPG keyring"
-
- mkdir -p "${DOWNLOAD_TEMP}/gpg"
- chmod 700 "${DOWNLOAD_TEMP}/gpg"
- export GNUPGHOME="${DOWNLOAD_TEMP}/gpg"
-
- success=
- for i in $(seq 3); do
- if gpg --keyserver "${DOWNLOAD_KEYSERVER}" \
- --recv-keys "${DOWNLOAD_KEYID}" >/dev/null 2>&1; then
- success=1
- break
- fi
- break
- done
-
- if [ -z "${success}" ]; then
- echo "ERROR: Unable to fetch GPG key from keyserver."
- exit 1
- fi
+ if [ -z "${success}" ]; then
+ echo "ERROR: Unable to fetch GPG key from keyserver"
+ exit 1
+ fi
- DOWNLOAD_READY_GPG="true"
+ DOWNLOAD_READY_GPG="true"
}
gpg_validate() {
- if [ "${DOWNLOAD_VALIDATE}" = "false" ]; then
- if [ "${DOWNLOAD_SHOW_GPG_WARNING}" = "true" ]; then
- echo "WARNING: Running without gpg validation!" 1>&2
- fi
- DOWNLOAD_SHOW_GPG_WARNING="false"
- return 0
+ if [ "${DOWNLOAD_VALIDATE}" = "false" ]; then
+ if [ "${DOWNLOAD_SHOW_GPG_WARNING}" = "true" ]; then
+ echo "WARNING: Running without gpg validation!" 1>&2
fi
+ DOWNLOAD_SHOW_GPG_WARNING="false"
+ return 0
+ fi
- if ! gpg --verify "$1" >/dev/null 2>&1; then
- echo "ERROR: Invalid signature for $1" 1>&2
- exit 1
- fi
+ if ! gpg --verify "$1" >/dev/null 2>&1; then
+ echo "ERROR: Invalid signature for $1" 1>&2
+ exit 1
+ fi
}
in_userns() {
- [ -e /proc/self/uid_map ] || { echo no; return; }
- while read -r line; do
- fields="$(echo "$line" | awk '{ print $1 " " $2 " " $3 }')"
- if [ "${fields}" = "0 0 4294967295" ]; then
- echo no;
- return;
- fi
- if echo "${fields}" | grep -q " 0 1$"; then
- echo userns-root;
- return;
- fi
- done < /proc/self/uid_map
-
- [ "$(cat /proc/self/uid_map)" = "$(cat /proc/1/uid_map)" ] && \
- { echo userns-root; return; }
- echo yes
+ [ -e /proc/self/uid_map ] || { echo no; return; }
+ while read -r line; do
+ fields="$(echo "$line" | awk '{ print $1 " " $2 " " $3 }')"
+ if [ "${fields}" = "0 0 4294967295" ]; then
+ echo no;
+ return;
+ fi
+ if echo "${fields}" | grep -q " 0 1$"; then
+ echo userns-root;
+ return;
+ fi
+ done < /proc/self/uid_map
+
+ [ "$(cat /proc/self/uid_map)" = "$(cat /proc/1/uid_map)" ] && { echo userns-root; return; }
+ echo yes
}
relevant_file() {
- FILE_PATH="${LXC_CACHE_PATH}/$1"
- if [ -e "${FILE_PATH}-${DOWNLOAD_MODE}" ]; then
- FILE_PATH="${FILE_PATH}-${DOWNLOAD_MODE}"
- fi
- if [ -e "${FILE_PATH}.${DOWNLOAD_COMPAT_LEVEL}" ]; then
- FILE_PATH="${FILE_PATH}.${DOWNLOAD_COMPAT_LEVEL}"
- fi
+ FILE_PATH="${LXC_CACHE_PATH}/$1"
+
+ if [ -e "${FILE_PATH}-${DOWNLOAD_MODE}" ]; then
+ FILE_PATH="${FILE_PATH}-${DOWNLOAD_MODE}"
+ fi
- echo "${FILE_PATH}"
+ if [ -e "${FILE_PATH}.${DOWNLOAD_COMPAT_LEVEL}" ]; then
+ FILE_PATH="${FILE_PATH}.${DOWNLOAD_COMPAT_LEVEL}"
+ fi
+
+ echo "${FILE_PATH}"
}
usage() {
- cat <<EOF
+ cat <<EOF
LXC container image downloader
Special arguments:
-[ -h | --help ]: Print this help message and exit.
-[ -l | --list ]: List all available images and exit.
+[ -h | --help ]: Print this help message and exit
+[ -l | --list ]: List all available images and exit
Required arguments:
[ -d | --dist <distribution> ]: The name of the distribution
Can be further overridden by using optional argument --keyserver
EOF
- return 0
+ return 0
}
if ! options=$(getopt -o d:r:a:hl -l dist:,release:,arch:,help,list,variant:,\
server:,keyid:,keyserver:,no-validate,flush-cache,force-cache,name:,path:,\
rootfs:,mapped-uid:,mapped-gid: -- "$@"); then
- usage
- exit 1
+ usage
+ exit 1
fi
eval set -- "$options"
while :; do
- case "$1" in
- -h|--help) usage && exit 1;;
- -l|--list) DOWNLOAD_LIST_IMAGES="true"; shift 1;;
- -d|--dist) DOWNLOAD_DIST="$2"; shift 2;;
- -r|--release) DOWNLOAD_RELEASE="$2"; shift 2;;
- -a|--arch) DOWNLOAD_ARCH="$2"; shift 2;;
- --variant) DOWNLOAD_VARIANT="$2"; shift 2;;
- --server) DOWNLOAD_SERVER="$2"; shift 2;;
- --keyid) DOWNLOAD_KEYID="$2"; shift 2;;
- --keyserver) DOWNLOAD_KEYSERVER="$2"; shift 2;;
- --no-validate) DOWNLOAD_VALIDATE="false"; shift 1;;
- --flush-cache) DOWNLOAD_FLUSH_CACHE="true"; shift 1;;
- --force-cache) DOWNLOAD_FORCE_CACHE="true"; shift 1;;
- --name) LXC_NAME="$2"; shift 2;;
- --path) LXC_PATH="$2"; shift 2;;
- --rootfs) LXC_ROOTFS="$2"; shift 2;;
- --mapped-uid) LXC_MAPPED_UID="$2"; shift 2;;
- --mapped-gid) LXC_MAPPED_GID="$2"; shift 2;;
- *) break;;
- esac
+ case "$1" in
+ -h|--help) usage && exit 1;;
+ -l|--list) DOWNLOAD_LIST_IMAGES="true"; shift 1;;
+ -d|--dist) DOWNLOAD_DIST="$2"; shift 2;;
+ -r|--release) DOWNLOAD_RELEASE="$2"; shift 2;;
+ -a|--arch) DOWNLOAD_ARCH="$2"; shift 2;;
+ --variant) DOWNLOAD_VARIANT="$2"; shift 2;;
+ --server) DOWNLOAD_SERVER="$2"; shift 2;;
+ --keyid) DOWNLOAD_KEYID="$2"; shift 2;;
+ --keyserver) DOWNLOAD_KEYSERVER="$2"; shift 2;;
+ --no-validate) DOWNLOAD_VALIDATE="false"; shift 1;;
+ --flush-cache) DOWNLOAD_FLUSH_CACHE="true"; shift 1;;
+ --force-cache) DOWNLOAD_FORCE_CACHE="true"; shift 1;;
+ --name) LXC_NAME="$2"; shift 2;;
+ --path) LXC_PATH="$2"; shift 2;;
+ --rootfs) LXC_ROOTFS="$2"; shift 2;;
+ --mapped-uid) LXC_MAPPED_UID="$2"; shift 2;;
+ --mapped-gid) LXC_MAPPED_GID="$2"; shift 2;;
+ *) break;;
+ esac
done
# Check for required binaries
for bin in tar xz wget; do
- if ! command -V "${bin}" >/dev/null 2>&1; then
- echo "ERROR: Missing required tool: ${bin}" 1>&2
- exit 1
- fi
+ if ! command -V "${bin}" >/dev/null 2>&1; then
+ echo "ERROR: Missing required tool: ${bin}" 1>&2
+ exit 1
+ fi
done
# Check for GPG
if [ "${DOWNLOAD_VALIDATE}" = "true" ]; then
- if ! command -V gpg >/dev/null 2>&1; then
- echo "ERROR: Missing recommended tool: gpg" 1>&2
- echo "You can workaround this by using --no-validate." 1>&2
- exit 1
- fi
+ if ! command -V gpg >/dev/null 2>&1; then
+ echo "ERROR: Missing recommended tool: gpg" 1>&2
+ echo "You can workaround this by using --no-validate" 1>&2
+ exit 1
+ fi
fi
# Check that we have all variables we need
if [ -z "${LXC_NAME}" ] || [ -z "${LXC_PATH}" ] || [ -z "${LXC_ROOTFS}" ]; then
- if [ "${DOWNLOAD_LIST_IMAGES}" != "true" ]; then
- echo "ERROR: Not running through LXC." 1>&2
- exit 1
- fi
+ if [ "${DOWNLOAD_LIST_IMAGES}" != "true" ]; then
+ echo "ERROR: Please pass the name, path, and rootfs for the container" 1>&2
+ exit 1
+ fi
fi
USERNS="$(in_userns)"
if [ "${USERNS}" != "no" ]; then
- if [ "${USERNS}" = "yes" ]; then
- if [ -z "${LXC_MAPPED_UID}" ] || [ "${LXC_MAPPED_UID}" = "-1" ]; then
- echo "ERROR: In a user namespace without a map." 1>&2
- exit 1
- fi
- DOWNLOAD_MODE="user"
- DOWNLOAD_TARGET="user"
- else
- DOWNLOAD_MODE="user"
- DOWNLOAD_TARGET="system"
+ if [ "${USERNS}" = "yes" ]; then
+ if [ -z "${LXC_MAPPED_UID}" ] || [ "${LXC_MAPPED_UID}" = "-1" ]; then
+ echo "ERROR: In a user namespace without a map" 1>&2
+ exit 1
fi
+ DOWNLOAD_MODE="user"
+ DOWNLOAD_TARGET="user"
+ else
+ DOWNLOAD_MODE="user"
+ DOWNLOAD_TARGET="system"
+ fi
fi
-if [ -z "${DOWNLOAD_DIST}" ] || [ -z "${DOWNLOAD_RELEASE}" ] || \
- [ -z "${DOWNLOAD_ARCH}" ]; then
- DOWNLOAD_INTERACTIVE="true"
+if [ -z "${DOWNLOAD_DIST}" ] || [ -z "${DOWNLOAD_RELEASE}" ] || [ -z "${DOWNLOAD_ARCH}" ]; then
+ DOWNLOAD_INTERACTIVE="true"
fi
# Trap all exit signals
# /tmp may be mounted in tmpfs or noexec
if mountpoint -q /tmp; then
- DOWNLOAD_TEMP="${LXC_PATH}"
+ DOWNLOAD_TEMP="${LXC_PATH}"
fi
if ! command -V mktemp >/dev/null 2>&1; then
- DOWNLOAD_TEMP="${DOWNLOAD_TEMP}/tmp/lxc-download.$$"
+ DOWNLOAD_TEMP="${DOWNLOAD_TEMP}/tmp/lxc-download.$$"
else
- DOWNLOAD_TEMP="${DOWNLOAD_TEMP}$(mktemp -d)"
+ DOWNLOAD_TEMP="${DOWNLOAD_TEMP}$(mktemp -d)"
fi
# Simply list images
-if [ "${DOWNLOAD_LIST_IMAGES}" = "true" ] || \
- [ "${DOWNLOAD_INTERACTIVE}" = "true" ]; then
- # Initialize GPG
- gpg_setup
-
- # Grab the index
- DOWNLOAD_INDEX_PATH="/meta/1.0/index-${DOWNLOAD_MODE}"
-
- echo "Downloading the image index"
- if ! download_file "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}" \
- "${DOWNLOAD_TEMP}/index" noexit ||
- ! download_sig "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc" \
- "${DOWNLOAD_TEMP}/index.asc" noexit; then
- download_file "${DOWNLOAD_INDEX_PATH}" "${DOWNLOAD_TEMP}/index" normal
- download_sig "${DOWNLOAD_INDEX_PATH}.asc" \
- "${DOWNLOAD_TEMP}/index.asc" normal
- fi
-
- gpg_validate "${DOWNLOAD_TEMP}/index.asc"
-
- # Parse it
- echo ""
- echo "---"
- printf "DIST\tRELEASE\tARCH\tVARIANT\tBUILD\n"
- echo "---"
- while IFS=';' read -r f1 f2 f3 f4 f5 f6; do
-
- [ -n "${DOWNLOAD_DIST}" ] && [ "$f1" != "${DOWNLOAD_DIST}" ] && continue
- [ -n "${DOWNLOAD_RELEASE}" ] && [ "$f2" != "${DOWNLOAD_RELEASE}" ] && continue
- [ -n "${DOWNLOAD_ARCH}" ] && [ "$f3" != "${DOWNLOAD_ARCH}" ] && continue
- [ -n "${DOWNLOAD_VARIANT}" ] && [ "$f4" != "${DOWNLOAD_VARIANT}" ] && continue
- [ -z "${f5}" ] || [ -z "${f6}" ] && continue
-
- printf "%s\t%s\t%s\t%s\t%s\n" "${f1}" "${f2}" "${f3}" "${f4}" "${f5}"
- unset f1 f2 f3 f4 f5 f6
- done < "${DOWNLOAD_TEMP}/index"
- echo "---"
-
- if [ "${DOWNLOAD_LIST_IMAGES}" = "true" ]; then
- exit 1
- fi
+if [ "${DOWNLOAD_LIST_IMAGES}" = "true" ] || [ "${DOWNLOAD_INTERACTIVE}" = "true" ]; then
+ # Initialize GPG
+ gpg_setup
+
+ # Grab the index
+ DOWNLOAD_INDEX_PATH="/meta/1.0/index-${DOWNLOAD_MODE}"
+
+ echo "Downloading the image index"
+ if ! download_file "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}" "${DOWNLOAD_TEMP}/index" noexit ||
+ ! download_sig "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc" "${DOWNLOAD_TEMP}/index.asc" noexit; then
+ download_file "${DOWNLOAD_INDEX_PATH}" "${DOWNLOAD_TEMP}/index" normal
+ download_sig "${DOWNLOAD_INDEX_PATH}.asc" "${DOWNLOAD_TEMP}/index.asc" normal
+ fi
+
+ gpg_validate "${DOWNLOAD_TEMP}/index.asc"
+
+ # Parse it
+ echo ""
+ echo "---"
+ printf "DIST\tRELEASE\tARCH\tVARIANT\tBUILD\n"
+ echo "---"
+ while IFS=';' read -r f1 f2 f3 f4 f5 f6; do
+ [ -n "${DOWNLOAD_DIST}" ] && [ "$f1" != "${DOWNLOAD_DIST}" ] && continue
+ [ -n "${DOWNLOAD_RELEASE}" ] && [ "$f2" != "${DOWNLOAD_RELEASE}" ] && continue
+ [ -n "${DOWNLOAD_ARCH}" ] && [ "$f3" != "${DOWNLOAD_ARCH}" ] && continue
+ [ -n "${DOWNLOAD_VARIANT}" ] && [ "$f4" != "${DOWNLOAD_VARIANT}" ] && continue
+ [ -z "${f5}" ] || [ -z "${f6}" ] && continue
+
+ printf "%s\t%s\t%s\t%s\t%s\n" "${f1}" "${f2}" "${f3}" "${f4}" "${f5}"
+ unset f1 f2 f3 f4 f5 f6
+ done < "${DOWNLOAD_TEMP}/index"
+ echo "---"
+
+ if [ "${DOWNLOAD_LIST_IMAGES}" = "true" ]; then
+ exit 1
+ fi
- # Interactive mode
- echo ""
+ # Interactive mode
+ echo ""
- if [ -z "${DOWNLOAD_DIST}" ]; then
- echo "Distribution: "
- read -r DOWNLOAD_DIST
- fi
+ if [ -z "${DOWNLOAD_DIST}" ]; then
+ echo "Distribution: "
+ read -r DOWNLOAD_DIST
+ fi
- if [ -z "${DOWNLOAD_RELEASE}" ]; then
- echo "Release: "
- read -r DOWNLOAD_RELEASE
- fi
+ if [ -z "${DOWNLOAD_RELEASE}" ]; then
+ echo "Release: "
+ read -r DOWNLOAD_RELEASE
+ fi
- if [ -z "${DOWNLOAD_ARCH}" ]; then
- echo "Architecture: "
- read -r DOWNLOAD_ARCH
- fi
+ if [ -z "${DOWNLOAD_ARCH}" ]; then
+ echo "Architecture: "
+ read -r DOWNLOAD_ARCH
+ fi
- echo ""
+ echo ""
fi
# Setup the cache
if [ "${DOWNLOAD_TARGET}" = "system" ]; then
- LXC_CACHE_BASE="${LOCALSTATEDIR}/cache/lxc/"
+ LXC_CACHE_BASE="${LOCALSTATEDIR}/cache/lxc/"
else
- LXC_CACHE_BASE="${HOME}/.cache/lxc/"
+ LXC_CACHE_BASE="${HOME}/.cache/lxc/"
fi
# Allow the setting of the LXC_CACHE_PATH with the usage of environment variables.
LXC_CACHE_PATH="${LXC_CACHE_PATH}/${DOWNLOAD_VARIANT}"
if [ -d "${LXC_CACHE_PATH}" ]; then
- if [ "${DOWNLOAD_FLUSH_CACHE}" = "true" ]; then
- echo "Flushing the cache..."
- rm -Rf "${LXC_CACHE_PATH}"
- elif [ "${DOWNLOAD_FORCE_CACHE}" = "true" ]; then
- DOWNLOAD_USE_CACHE="true"
- else
- DOWNLOAD_USE_CACHE="true"
- if [ -e "$(relevant_file expiry)" ]; then
- if [ "$(cat "$(relevant_file expiry)")" -lt "$(date +%s)" ]; then
- echo "The cached copy has expired, re-downloading..."
- DOWNLOAD_USE_CACHE="false"
- fi
- fi
+ if [ "${DOWNLOAD_FLUSH_CACHE}" = "true" ]; then
+ echo "Flushing the cache..."
+ rm -Rf "${LXC_CACHE_PATH}"
+ elif [ "${DOWNLOAD_FORCE_CACHE}" = "true" ]; then
+ DOWNLOAD_USE_CACHE="true"
+ else
+ DOWNLOAD_USE_CACHE="true"
+ if [ -e "$(relevant_file expiry)" ]; then
+ if [ "$(cat "$(relevant_file expiry)")" -lt "$(date +%s)" ]; then
+ echo "The cached copy has expired, re-downloading..."
+ DOWNLOAD_USE_CACHE="false"
+ fi
fi
+ fi
fi
# Download what's needed
if [ "${DOWNLOAD_USE_CACHE}" = "false" ]; then
- # Initialize GPG
- gpg_setup
-
- # Grab the index
- DOWNLOAD_INDEX_PATH="/meta/1.0/index-${DOWNLOAD_MODE}"
-
- echo "Downloading the image index"
- if ! download_file "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}" \
- "${DOWNLOAD_TEMP}/index" noexit ||
- ! download_sig "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc" \
- "${DOWNLOAD_TEMP}/index.asc" noexit; then
- download_file "${DOWNLOAD_INDEX_PATH}" "${DOWNLOAD_TEMP}/index" normal
- download_sig "${DOWNLOAD_INDEX_PATH}.asc" \
- "${DOWNLOAD_TEMP}/index.asc" normal
+ # Initialize GPG
+ gpg_setup
+
+ # Grab the index
+ DOWNLOAD_INDEX_PATH="/meta/1.0/index-${DOWNLOAD_MODE}"
+
+ echo "Downloading the image index"
+ if ! download_file "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}" "${DOWNLOAD_TEMP}/index" noexit ||
+ ! download_sig "${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc" "${DOWNLOAD_TEMP}/index.asc" noexit; then
+ download_file "${DOWNLOAD_INDEX_PATH}" "${DOWNLOAD_TEMP}/index" normal
+ download_sig "${DOWNLOAD_INDEX_PATH}.asc" "${DOWNLOAD_TEMP}/index.asc" normal
+ fi
+
+ gpg_validate "${DOWNLOAD_TEMP}/index.asc"
+
+ # Parse it
+ while IFS=';' read -r f1 f2 f3 f4 f5 f6; do
+ if [ "${f1}" != "${DOWNLOAD_DIST}" ] || \
+ [ "${f2}" != "${DOWNLOAD_RELEASE}" ] || \
+ [ "${f3}" != "${DOWNLOAD_ARCH}" ] || \
+ [ "${f4}" != "${DOWNLOAD_VARIANT}" ] || \
+ [ -z "${f6}" ]; then
+ continue
fi
- gpg_validate "${DOWNLOAD_TEMP}/index.asc"
+ DOWNLOAD_BUILD="${f5}"
+ DOWNLOAD_URL="${f6}"
- # Parse it
- while IFS=';' read -r f1 f2 f3 f4 f5 f6; do
+ unset f1 f2 f3 f4 f5 f6
+ break
+ done < "${DOWNLOAD_TEMP}/index"
- if [ "${f1}" != "${DOWNLOAD_DIST}" ] || \
- [ "${f2}" != "${DOWNLOAD_RELEASE}" ] || \
- [ "${f3}" != "${DOWNLOAD_ARCH}" ] || \
- [ "${f4}" != "${DOWNLOAD_VARIANT}" ] || \
- [ -z "${f6}" ]; then
- continue
- fi
+ if [ -z "${DOWNLOAD_URL}" ]; then
+ echo "ERROR: Couldn't find a matching image" 1>&1
+ exit 1
+ fi
- DOWNLOAD_BUILD="${f5}"
- DOWNLOAD_URL="${f6}"
+ if [ -d "${LXC_CACHE_PATH}" ] && [ -f "${LXC_CACHE_PATH}/build_id" ] && \
+ [ "$(cat "${LXC_CACHE_PATH}/build_id")" = "${DOWNLOAD_BUILD}" ]; then
+ echo "The cache is already up to date"
+ echo "Using image from local cache"
+ else
+ # Download the actual files
+ echo "Downloading the rootfs"
+ download_file "${DOWNLOAD_URL}/rootfs.tar.xz" "${DOWNLOAD_TEMP}/rootfs.tar.xz" normal
+ download_sig "${DOWNLOAD_URL}/rootfs.tar.xz.asc" "${DOWNLOAD_TEMP}/rootfs.tar.xz.asc" normal
+ gpg_validate "${DOWNLOAD_TEMP}/rootfs.tar.xz.asc"
+
+ echo "Downloading the metadata"
+ download_file "${DOWNLOAD_URL}/meta.tar.xz" "${DOWNLOAD_TEMP}/meta.tar.xz" normal
+ download_sig "$DOWNLOAD_URL/meta.tar.xz.asc" "${DOWNLOAD_TEMP}/meta.tar.xz.asc" normal
+ gpg_validate "${DOWNLOAD_TEMP}/meta.tar.xz.asc"
+
+ if [ -d "${LXC_CACHE_PATH}" ]; then
+ rm -Rf "${LXC_CACHE_PATH}"
+ fi
+ mkdir -p "${LXC_CACHE_PATH}"
+ mv "${DOWNLOAD_TEMP}/rootfs.tar.xz" "${LXC_CACHE_PATH}"
+ if ! tar Jxf "${DOWNLOAD_TEMP}/meta.tar.xz" -C "${LXC_CACHE_PATH}"; then
+ echo "ERROR: Invalid rootfs tarball." 2>&1
+ exit 1
+ fi
- unset f1 f2 f3 f4 f5 f6
- break
- done < "${DOWNLOAD_TEMP}/index"
+ echo "${DOWNLOAD_BUILD}" > "${LXC_CACHE_PATH}/build_id"
- if [ -z "${DOWNLOAD_URL}" ]; then
- echo "ERROR: Couldn't find a matching image." 1>&1
- exit 1
+ if [ -n "${LXC_MAPPED_UID}" ] && [ "${LXC_MAPPED_UID}" != "-1" ]; then
+ # As the script is run in strict mode (set -eu), all commands
+ # exiting with non 0 would make the script stop.
+ # || true or || : (more portable) prevents that.
+ chown -R "${LXC_MAPPED_UID}" "${LXC_CACHE_BASE}" >/dev/null 2>&1 || :
fi
-
- if [ -d "${LXC_CACHE_PATH}" ] && [ -f "${LXC_CACHE_PATH}/build_id" ] && \
- [ "$(cat "${LXC_CACHE_PATH}/build_id")" = "${DOWNLOAD_BUILD}" ]; then
- echo "The cache is already up to date."
- echo "Using image from local cache"
- else
- # Download the actual files
- echo "Downloading the rootfs"
- download_file "${DOWNLOAD_URL}/rootfs.tar.xz" \
- "${DOWNLOAD_TEMP}/rootfs.tar.xz" normal
- download_sig "${DOWNLOAD_URL}/rootfs.tar.xz.asc" \
- "${DOWNLOAD_TEMP}/rootfs.tar.xz.asc" normal
- gpg_validate "${DOWNLOAD_TEMP}/rootfs.tar.xz.asc"
-
- echo "Downloading the metadata"
- download_file "${DOWNLOAD_URL}/meta.tar.xz" \
- "${DOWNLOAD_TEMP}/meta.tar.xz" normal
- download_sig "$DOWNLOAD_URL/meta.tar.xz.asc" \
- "${DOWNLOAD_TEMP}/meta.tar.xz.asc" normal
- gpg_validate "${DOWNLOAD_TEMP}/meta.tar.xz.asc"
-
- if [ -d "${LXC_CACHE_PATH}" ]; then
- rm -Rf "${LXC_CACHE_PATH}"
- fi
- mkdir -p "${LXC_CACHE_PATH}"
- mv "${DOWNLOAD_TEMP}/rootfs.tar.xz" "${LXC_CACHE_PATH}"
- if ! tar Jxf "${DOWNLOAD_TEMP}/meta.tar.xz" -C "${LXC_CACHE_PATH}"; then
- echo "ERROR: Invalid rootfs tarball." 2>&1
- exit 1
- fi
-
- echo "${DOWNLOAD_BUILD}" > "${LXC_CACHE_PATH}/build_id"
-
- if [ -n "${LXC_MAPPED_UID}" ] && [ "${LXC_MAPPED_UID}" != "-1" ]; then
- # As the script is run in strict mode (set -eu), all commands
- # exiting with non 0 would make the script stop.
- # || true or || : (more portable) prevents that.
- chown -R "${LXC_MAPPED_UID}" "${LXC_CACHE_BASE}" >/dev/null 2>&1 || :
- fi
- if [ -n "${LXC_MAPPED_GID}" ] && [ "${LXC_MAPPED_GID}" != "-1" ]; then
- chgrp -R "${LXC_MAPPED_GID}" "${LXC_CACHE_BASE}" >/dev/null 2>&1 || :
- fi
- echo "The image cache is now ready"
+ if [ -n "${LXC_MAPPED_GID}" ] && [ "${LXC_MAPPED_GID}" != "-1" ]; then
+ chgrp -R "${LXC_MAPPED_GID}" "${LXC_CACHE_BASE}" >/dev/null 2>&1 || :
fi
+ echo "The image cache is now ready"
+ fi
else
- echo "Using image from local cache"
+ echo "Using image from local cache"
fi
# Unpack the rootfs
EXCLUDES=""
excludelist=$(relevant_file excludes)
if [ -f "${excludelist}" ]; then
- while read -r line; do
- EXCLUDES="${EXCLUDES} --exclude=${line}"
- done < "${excludelist}"
+ while read -r line; do
+ EXCLUDES="${EXCLUDES} --exclude=${line}"
+ done < "${excludelist}"
fi
# Do not surround ${EXCLUDES} by quotes. This does not work. The solution could
# is to use a function wrapper, but the latter can't be used here as the args
# are dynamic. We thus need to ignore the warning brought by shellcheck.
# shellcheck disable=SC2086
-tar --anchored ${EXCLUDES} --numeric-owner -xpJf \
- "${LXC_CACHE_PATH}/rootfs.tar.xz" -C "${LXC_ROOTFS}"
+tar --anchored ${EXCLUDES} --numeric-owner -xpJf "${LXC_CACHE_PATH}/rootfs.tar.xz" -C "${LXC_ROOTFS}"
mkdir -p "${LXC_ROOTFS}/dev/pts/"
configfile="$(relevant_file config)"
fstab="$(relevant_file fstab)"
if [ ! -e "${configfile}" ]; then
- echo "ERROR: meta tarball is missing the configuration file" 1>&2
- exit 1
+ echo "ERROR: meta tarball is missing the configuration file" 1>&2
+ exit 1
fi
## Extract all the network config entries
-sed -i -e "/lxc.net.0/{w ${LXC_PATH}/config-network" -e "d}" \
- "${LXC_PATH}/config"
+sed -i -e "/lxc.net.0/{w ${LXC_PATH}/config-network" -e "d}" "${LXC_PATH}/config"
## Extract any other config entry
sed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" "${LXC_PATH}/config"
## Append the defaults
-echo "" >> "${LXC_PATH}/config"
-echo "# Distribution configuration" >> "${LXC_PATH}/config"
-cat "$configfile" >> "${LXC_PATH}/config"
+{
+ echo ""
+ echo "# Distribution configuration"
+ cat "$configfile"
+} >> "${LXC_PATH}/config"
## Add the container-specific config
-echo "" >> "${LXC_PATH}/config"
-echo "# Container specific configuration" >> "${LXC_PATH}/config"
-if [ -e "${LXC_PATH}/config-auto" ]; then
- cat "${LXC_PATH}/config-auto" >> "${LXC_PATH}/config"
+{
+ echo ""
+ echo "# Container specific configuration"
+ if [ -e "${LXC_PATH}/config-auto" ]; then
+ cat "${LXC_PATH}/config-auto"
rm "${LXC_PATH}/config-auto"
-fi
-if [ -e "${fstab}" ]; then
- echo "lxc.mount.fstab = ${LXC_PATH}/fstab" >> "${LXC_PATH}/config"
-fi
-echo "lxc.uts.name = ${LXC_NAME}" >> "${LXC_PATH}/config"
+ fi
+ if [ -e "${fstab}" ]; then
+ echo "lxc.mount.fstab = ${LXC_PATH}/fstab"
+ fi
+ echo "lxc.uts.name = ${LXC_NAME}"
+} >> "${LXC_PATH}/config"
## Re-add the previously removed network config
if [ -e "${LXC_PATH}/config-network" ]; then
- echo "" >> "${LXC_PATH}/config"
- echo "# Network configuration" >> "${LXC_PATH}/config"
- cat "${LXC_PATH}/config-network" >> "${LXC_PATH}/config"
+ {
+ echo ""
+ echo "# Network configuration"
+ cat "${LXC_PATH}/config-network"
rm "${LXC_PATH}/config-network"
+ } >> "${LXC_PATH}/config"
fi
TEMPLATE_FILES="${LXC_PATH}/config"
# Setup the fstab
if [ -e "${fstab}" ]; then
- cp "${fstab}" "${LXC_PATH}/fstab"
- TEMPLATE_FILES="${TEMPLATE_FILES};${LXC_PATH}/fstab"
+ cp "${fstab}" "${LXC_PATH}/fstab"
+ TEMPLATE_FILES="${TEMPLATE_FILES};${LXC_PATH}/fstab"
fi
# Look for extra templates
if [ -e "$(relevant_file templates)" ]; then
- while read -r line; do
- fullpath="${LXC_ROOTFS}/${line}"
- [ ! -e "${fullpath}" ] && continue
- TEMPLATE_FILES="${TEMPLATE_FILES};${fullpath}"
- done < "$(relevant_file templates)"
+ while read -r line; do
+ fullpath="${LXC_ROOTFS}/${line}"
+ [ ! -e "${fullpath}" ] && continue
+ TEMPLATE_FILES="${TEMPLATE_FILES};${fullpath}"
+ done < "$(relevant_file templates)"
fi
# Replace variables in all templates
IFS=";"
for file in ${TEMPLATE_FILES}; do
[ ! -f "${file}" ] && continue
-
- sed -i "s#LXC_NAME#${LXC_NAME}#g" "${file}"
- sed -i "s#LXC_PATH#${LXC_PATH}#g" "${file}"
- sed -i "s#LXC_ROOTFS#${LXC_ROOTFS}#g" "${file}"
- sed -i "s#LXC_TEMPLATE_CONFIG#${LXC_TEMPLATE_CONFIG}#g" "${file}"
- sed -i "s#LXC_HOOK_DIR#${LXC_HOOK_DIR}#g" "${file}"
+ sed -i "s#LXC_NAME#${LXC_NAME}#g" "${file}"
+ sed -i "s#LXC_PATH#${LXC_PATH}#g" "${file}"
+ sed -i "s#LXC_ROOTFS#${LXC_ROOTFS}#g" "${file}"
+ sed -i "s#LXC_TEMPLATE_CONFIG#${LXC_TEMPLATE_CONFIG}#g" "${file}"
+ sed -i "s#LXC_HOOK_DIR#${LXC_HOOK_DIR}#g" "${file}"
done
IFS=${OLD_IFS}
# prevent mingetty from calling vhangup(2) since it fails with userns on CentOS / Oracle
if [ -f "${LXC_ROOTFS}/etc/init/tty.conf" ]; then
- sed -i 's|mingetty|mingetty --nohangup|' "${LXC_ROOTFS}/etc/init/tty.conf"
+ sed -i 's|mingetty|mingetty --nohangup|' "${LXC_ROOTFS}/etc/init/tty.conf"
fi
if [ -n "${LXC_MAPPED_UID}" ] && [ "${LXC_MAPPED_UID}" != "-1" ]; then
- chown "${LXC_MAPPED_UID}" "${LXC_PATH}/config" "${LXC_PATH}/fstab" >/dev/null 2>&1 || :
+ chown "${LXC_MAPPED_UID}" "${LXC_PATH}/config" "${LXC_PATH}/fstab" >/dev/null 2>&1 || :
fi
+
if [ -n "${LXC_MAPPED_GID}" ] && [ "${LXC_MAPPED_GID}" != "-1" ]; then
- chgrp "${LXC_MAPPED_GID}" "${LXC_PATH}/config" "${LXC_PATH}/fstab" >/dev/null 2>&1 || :
+ chgrp "${LXC_MAPPED_GID}" "${LXC_PATH}/config" "${LXC_PATH}/fstab" >/dev/null 2>&1 || :
fi
if [ -e "$(relevant_file create-message)" ]; then
- echo ""
- echo "---"
- cat "$(relevant_file create-message)"
+ echo ""
+ echo "---"
+ cat "$(relevant_file create-message)"
fi
exit 0
projects / mirror_lxc.git / commitdiff