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Commit | Line | Data |
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71d3a659 SG |
1 | #!/bin/sh |
2 | ||
3 | # Client script for LXC container images. | |
4 | # | |
5 | # Copyright © 2014 Stéphane Graber <stgraber@ubuntu.com> | |
6 | # | |
7 | # This library is free software; you can redistribute it and/or | |
8 | # modify it under the terms of the GNU Lesser General Public | |
9 | # License as published by the Free Software Foundation; either | |
10 | # version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | # This library is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | # Lesser General Public License for more details. | |
16 | ||
17 | # You should have received a copy of the GNU Lesser General Public | |
18 | # License along with this library; if not, write to the Free Software | |
19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
20 | # USA | |
21 | ||
22 | set -eu | |
23 | ||
71d3a659 | 24 | LOCALSTATEDIR="@LOCALSTATEDIR@" |
f74e080c SG |
25 | LXC_HOOK_DIR="@LXCHOOKDIR@" |
26 | LXC_TEMPLATE_CONFIG="@LXCTEMPLATECONFIG@" | |
71d3a659 SG |
27 | |
28 | # Defaults | |
71d3a659 | 29 | DOWNLOAD_ARCH= |
f74e080c | 30 | DOWNLOAD_BUILD= |
9fd38724 | 31 | DOWNLOAD_COMPAT_LEVEL=3 |
f74e080c | 32 | DOWNLOAD_DIST= |
71d3a659 | 33 | DOWNLOAD_FLUSH_CACHE="false" |
41670b35 | 34 | DOWNLOAD_FORCE_CACHE="false" |
f74e080c | 35 | DOWNLOAD_INTERACTIVE="false" |
dd2dbcb9 | 36 | DOWNLOAD_KEYID="0xE7FB0CAEC8173D669066514CBAEFF88C22F6E216" |
f74e080c SG |
37 | DOWNLOAD_KEYSERVER="hkp://pool.sks-keyservers.net" |
38 | DOWNLOAD_LIST_IMAGES="false" | |
71d3a659 | 39 | DOWNLOAD_MODE="system" |
b0f0932a | 40 | DOWNLOAD_READY_GPG="false" |
f74e080c SG |
41 | DOWNLOAD_RELEASE= |
42 | DOWNLOAD_SERVER="images.linuxcontainers.org" | |
43 | DOWNLOAD_SHOW_GPG_WARNING="true" | |
44 | DOWNLOAD_SHOW_HTTP_WARNING="true" | |
45 | DOWNLOAD_TARGET="system" | |
46 | DOWNLOAD_URL= | |
47 | DOWNLOAD_USE_CACHE="false" | |
48 | DOWNLOAD_VALIDATE="true" | |
49 | DOWNLOAD_VARIANT="default" | |
71d3a659 | 50 | |
f74e080c SG |
51 | LXC_MAPPED_GID= |
52 | LXC_MAPPED_UID= | |
71d3a659 SG |
53 | LXC_NAME= |
54 | LXC_PATH= | |
55 | LXC_ROOTFS= | |
71d3a659 | 56 | |
4eb706b3 SG |
57 | # Deal with GPG over http proxy |
58 | if [ -n "${http_proxy:-}" ]; then | |
ef9512b4 | 59 | DOWNLOAD_KEYSERVER="hkp://p80.pool.sks-keyservers.net:80" |
4eb706b3 SG |
60 | fi |
61 | ||
207bf0e4 SG |
62 | # Make sure the usual locations are in PATH |
63 | export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin | |
64 | ||
71d3a659 SG |
65 | # Some useful functions |
66 | cleanup() { | |
67 | if [ -d "$DOWNLOAD_TEMP" ]; then | |
68 | rm -Rf $DOWNLOAD_TEMP | |
69 | fi | |
70 | } | |
71 | ||
acabe1fa SG |
72 | wget_wrapper() { |
73 | for i in $(seq 3); do | |
74 | if wget $@; then | |
75 | return 0 | |
76 | fi | |
77 | done | |
78 | ||
79 | return 1 | |
80 | } | |
81 | ||
71d3a659 | 82 | download_file() { |
acabe1fa SG |
83 | if ! wget_wrapper -T 30 -q https://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then |
84 | if ! wget_wrapper -T 30 -q http://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then | |
71d3a659 SG |
85 | if [ "$3" = "noexit" ]; then |
86 | return 1 | |
87 | else | |
fad96766 | 88 | echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2 |
71d3a659 SG |
89 | exit 1 |
90 | fi | |
91 | elif [ "$DOWNLOAD_SHOW_HTTP_WARNING" = "true" ]; then | |
92 | DOWNLOAD_SHOW_HTTP_WARNING="false" | |
93 | echo "WARNING: Failed to download the file over HTTPs." 1>&2 | |
94 | echo -n " The file was instead download over HTTP. " 1>&2 | |
95 | echo "A server replay attack may be possible!" 1>&2 | |
96 | fi | |
97 | fi | |
98 | } | |
99 | ||
fad96766 | 100 | download_sig() { |
33aa351a SG |
101 | if ! download_file $1 $2 noexit; then |
102 | if [ "$DOWNLOAD_VALIDATE" = "true" ]; then | |
103 | if [ "$3" = "normal" ]; then | |
104 | echo "ERROR: Failed to download http://${DOWNLOAD_SERVER}/$1" 1>&2 | |
105 | exit 1 | |
106 | else | |
107 | return 1 | |
108 | fi | |
109 | else | |
110 | return 0 | |
111 | fi | |
fad96766 DE |
112 | fi |
113 | } | |
114 | ||
71d3a659 SG |
115 | gpg_setup() { |
116 | if [ "$DOWNLOAD_VALIDATE" = "false" ]; then | |
117 | return | |
118 | fi | |
119 | ||
b0f0932a SG |
120 | if [ "$DOWNLOAD_READY_GPG" = "true" ]; then |
121 | return | |
122 | fi | |
123 | ||
71d3a659 SG |
124 | echo "Setting up the GPG keyring" |
125 | ||
126 | mkdir -p "$DOWNLOAD_TEMP/gpg" | |
127 | chmod 700 "$DOWNLOAD_TEMP/gpg" | |
128 | export GNUPGHOME="$DOWNLOAD_TEMP/gpg" | |
809a1539 SG |
129 | |
130 | success= | |
131 | for i in $(seq 3); do | |
132 | if gpg --keyserver $DOWNLOAD_KEYSERVER \ | |
71d3a659 | 133 | --recv-keys ${DOWNLOAD_KEYID} >/dev/null 2>&1; then |
809a1539 SG |
134 | success=1 |
135 | break | |
136 | fi | |
137 | done | |
138 | ||
139 | if [ -z "$success" ]; then | |
71d3a659 SG |
140 | echo "ERROR: Unable to fetch GPG key from keyserver." |
141 | exit 1 | |
142 | fi | |
b0f0932a SG |
143 | |
144 | DOWNLOAD_READY_GPG="true" | |
71d3a659 SG |
145 | } |
146 | ||
147 | gpg_validate() { | |
148 | if [ "$DOWNLOAD_VALIDATE" = "false" ]; then | |
149 | if [ "$DOWNLOAD_SHOW_GPG_WARNING" = "true" ]; then | |
150 | echo "WARNING: Running without gpg validation!" 1>&2 | |
151 | fi | |
152 | DOWNLOAD_SHOW_GPG_WARNING="false" | |
153 | return 0 | |
154 | fi | |
155 | ||
156 | if ! gpg --verify $1 >/dev/zero 2>&1; then | |
157 | echo "ERROR: Invalid signature for $1" 1>&2 | |
158 | exit 1 | |
159 | fi | |
160 | } | |
161 | ||
162 | in_userns() { | |
163 | [ -e /proc/self/uid_map ] || { echo no; return; } | |
9f15e86a SG |
164 | while read line; do |
165 | fields=$(echo $line | awk '{ print $1 " " $2 " " $3 }') | |
166 | [ "$fields" = "0 0 4294967295" ] && { echo no; return; } || true | |
167 | echo $fields | grep -q " 0 1$" && { echo userns-root; return; } || true | |
168 | done < /proc/self/uid_map | |
a1b6244e | 169 | |
f74e080c SG |
170 | [ "$(cat /proc/self/uid_map)" = "$(cat /proc/1/uid_map)" ] && \ |
171 | { echo userns-root; return; } | |
71d3a659 SG |
172 | echo yes |
173 | } | |
174 | ||
175 | relevant_file() { | |
176 | FILE_PATH="${LXC_CACHE_PATH}/$1" | |
177 | if [ -e "${FILE_PATH}-${DOWNLOAD_MODE}" ]; then | |
178 | FILE_PATH="${FILE_PATH}-${DOWNLOAD_MODE}" | |
179 | fi | |
180 | if [ -e "$FILE_PATH.${DOWNLOAD_COMPAT_LEVEL}" ]; then | |
181 | FILE_PATH="${FILE_PATH}.${DOWNLOAD_COMPAT_LEVEL}" | |
182 | fi | |
183 | ||
184 | echo $FILE_PATH | |
185 | } | |
186 | ||
187 | usage() { | |
188 | cat <<EOF | |
189 | LXC container image downloader | |
190 | ||
7d540a26 MA |
191 | Special arguments: |
192 | [ -h | --help ]: Print this help message and exit. | |
193 | [ -l | --list ]: List all available images and exit. | |
194 | ||
71d3a659 SG |
195 | Required arguments: |
196 | [ -d | --dist <distribution> ]: The name of the distribution | |
197 | [ -r | --release <release> ]: Release name/version | |
198 | [ -a | --arch <architecture> ]: Architecture of the container | |
71d3a659 SG |
199 | |
200 | Optional arguments: | |
201 | [ --variant <variant> ]: Variant of the image (default: "default") | |
202 | [ --server <server> ]: Image server (default: "images.linuxcontainers.org") | |
203 | [ --keyid <keyid> ]: GPG keyid (default: 0x...) | |
204 | [ --keyserver <keyserver> ]: GPG keyserver to use | |
205 | [ --no-validate ]: Disable GPG validation (not recommended) | |
206 | [ --flush-cache ]: Flush the local copy (if present) | |
e145b7bb | 207 | [ --force-cache ]: Force the use of the local copy even if expired |
71d3a659 SG |
208 | |
209 | LXC internal arguments (do not pass manually!): | |
210 | [ --name <name> ]: The container name | |
211 | [ --path <path> ]: The path to the container | |
212 | [ --rootfs <rootfs> ]: The path to the container's rootfs | |
2133f58c SH |
213 | [ --mapped-uid <map> ]: A uid map (user namespaces) |
214 | [ --mapped-gid <map> ]: A gid map (user namespaces) | |
71d3a659 SG |
215 | EOF |
216 | return 0 | |
217 | } | |
218 | ||
10a5fab6 | 219 | options=$(getopt -o d:r:a:hl -l dist:,release:,arch:,help,list,variant:,\ |
3cd988cc | 220 | server:,keyid:,keyserver:,no-validate,flush-cache,force-cache,name:,path:,\ |
2133f58c | 221 | rootfs:,mapped-uid:,mapped-gid: -- "$@") |
71d3a659 SG |
222 | |
223 | if [ $? -ne 0 ]; then | |
224 | usage | |
225 | exit 1 | |
226 | fi | |
227 | eval set -- "$options" | |
228 | ||
229 | while :; do | |
230 | case "$1" in | |
10a5fab6 SG |
231 | -h|--help) usage && exit 1;; |
232 | -l|--list) DOWNLOAD_LIST_IMAGES="true"; shift 1;; | |
71d3a659 SG |
233 | -d|--dist) DOWNLOAD_DIST=$2; shift 2;; |
234 | -r|--release) DOWNLOAD_RELEASE=$2; shift 2;; | |
235 | -a|--arch) DOWNLOAD_ARCH=$2; shift 2;; | |
236 | --variant) DOWNLOAD_VARIANT=$2; shift 2;; | |
237 | --server) DOWNLOAD_SERVER=$2; shift 2;; | |
238 | --keyid) DOWNLOAD_KEYID=$2; shift 2;; | |
3cd988cc | 239 | --keyserver) DOWNLOAD_KEYSERVER=$2; shift 2;; |
71d3a659 SG |
240 | --no-validate) DOWNLOAD_VALIDATE="false"; shift 1;; |
241 | --flush-cache) DOWNLOAD_FLUSH_CACHE="true"; shift 1;; | |
9accc2ef | 242 | --force-cache) DOWNLOAD_FORCE_CACHE="true"; shift 1;; |
71d3a659 SG |
243 | --name) LXC_NAME=$2; shift 2;; |
244 | --path) LXC_PATH=$2; shift 2;; | |
245 | --rootfs) LXC_ROOTFS=$2; shift 2;; | |
246 | --mapped-uid) LXC_MAPPED_UID=$2; shift 2;; | |
2133f58c | 247 | --mapped-gid) LXC_MAPPED_GID=$2; shift 2;; |
71d3a659 SG |
248 | *) break;; |
249 | esac | |
250 | done | |
251 | ||
252 | # Check for required binaries | |
253 | for bin in tar xz wget; do | |
254 | if ! type $bin >/dev/null 2>&1; then | |
255 | echo "ERROR: Missing required tool: $bin" 1>&2 | |
256 | exit 1 | |
257 | fi | |
258 | done | |
259 | ||
260 | # Check for GPG | |
261 | if [ "$DOWNLOAD_VALIDATE" = "true" ]; then | |
262 | if ! type gpg >/dev/null 2>&1; then | |
263 | echo "ERROR: Missing recommended tool: gpg" 1>&2 | |
264 | echo "You can workaround this by using --no-validate." 1>&2 | |
265 | exit 1 | |
266 | fi | |
267 | fi | |
268 | ||
269 | # Check that we have all variables we need | |
270 | if [ -z "$LXC_NAME" ] || [ -z "$LXC_PATH" ] || [ -z "$LXC_ROOTFS" ]; then | |
308f4f39 MA |
271 | if [ "$DOWNLOAD_LIST_IMAGES" != "true" ]; then |
272 | echo "ERROR: Not running through LXC." 1>&2 | |
273 | exit 1 | |
274 | fi | |
71d3a659 SG |
275 | fi |
276 | ||
f74e080c SG |
277 | USERNS=$(in_userns) |
278 | ||
279 | if [ "$USERNS" != "no" ]; then | |
280 | if [ "$USERNS" = "yes" ]; then | |
281 | if [ -z "$LXC_MAPPED_UID" ] || [ "$LXC_MAPPED_UID" = "-1" ]; then | |
282 | echo "ERROR: In a user namespace without a map." 1>&2 | |
283 | exit 1 | |
284 | fi | |
285 | DOWNLOAD_MODE="user" | |
286 | DOWNLOAD_TARGET="user" | |
287 | else | |
288 | DOWNLOAD_MODE="user" | |
289 | DOWNLOAD_TARGET="system" | |
71d3a659 | 290 | fi |
71d3a659 SG |
291 | fi |
292 | ||
b0f0932a SG |
293 | if [ -z "$DOWNLOAD_DIST" ] || [ -z "$DOWNLOAD_RELEASE" ] || \ |
294 | [ -z "$DOWNLOAD_ARCH" ]; then | |
295 | DOWNLOAD_INTERACTIVE="true" | |
71d3a659 SG |
296 | fi |
297 | ||
298 | # Trap all exit signals | |
299 | trap cleanup EXIT HUP INT TERM | |
843a5874 SG |
300 | |
301 | if ! type mktemp >/dev/null 2>&1; then | |
302 | DOWNLOAD_TEMP=/tmp/lxc-download.$$ | |
303 | mkdir -p $DOWNLOAD_TEMP | |
304 | else | |
305 | DOWNLOAD_TEMP=$(mktemp -d) | |
306 | fi | |
71d3a659 | 307 | |
10a5fab6 | 308 | # Simply list images |
b0f0932a SG |
309 | if [ "$DOWNLOAD_LIST_IMAGES" = "true" ] || \ |
310 | [ "$DOWNLOAD_INTERACTIVE" = "true" ]; then | |
10a5fab6 SG |
311 | # Initialize GPG |
312 | gpg_setup | |
313 | ||
314 | # Grab the index | |
315 | DOWNLOAD_INDEX_PATH=/meta/1.0/index-${DOWNLOAD_MODE} | |
316 | ||
317 | echo "Downloading the image index" | |
318 | if ! download_file ${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL} \ | |
319 | ${DOWNLOAD_TEMP}/index noexit || | |
320 | ! download_sig ${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc \ | |
321 | ${DOWNLOAD_TEMP}/index.asc noexit; then | |
322 | download_file ${DOWNLOAD_INDEX_PATH} ${DOWNLOAD_TEMP}/index normal | |
323 | download_sig ${DOWNLOAD_INDEX_PATH}.asc \ | |
324 | ${DOWNLOAD_TEMP}/index.asc normal | |
325 | fi | |
326 | ||
327 | gpg_validate ${DOWNLOAD_TEMP}/index.asc | |
328 | ||
329 | # Parse it | |
330 | echo "" | |
331 | echo "---" | |
96283b54 | 332 | printf "DIST\tRELEASE\tARCH\tVARIANT\tBUILD\n" |
10a5fab6 SG |
333 | echo "---" |
334 | while read line; do | |
335 | # Basic CSV parser | |
336 | OLD_IFS=$IFS | |
337 | IFS=";" | |
338 | set -- $line | |
339 | IFS=$OLD_IFS | |
340 | ||
341 | [ -n "$DOWNLOAD_DIST" ] && [ "$1" != "$DOWNLOAD_DIST" ] && continue | |
342 | [ -n "$DOWNLOAD_RELEASE" ] && [ "$2" != "$DOWNLOAD_RELEASE" ] && continue | |
343 | [ -n "$DOWNLOAD_ARCH" ] && [ "$3" != "$DOWNLOAD_ARCH" ] && continue | |
344 | [ -n "$DOWNLOAD_VARIANT" ] && [ "$4" != "$DOWNLOAD_VARIANT" ] && continue | |
345 | [ -z "$5" ] || [ -z "$6" ] && continue | |
346 | ||
96283b54 | 347 | printf "$1\t$2\t$3\t$4\t$5\n" |
10a5fab6 SG |
348 | done < ${DOWNLOAD_TEMP}/index |
349 | echo "---" | |
350 | ||
b0f0932a SG |
351 | if [ "$DOWNLOAD_LIST_IMAGES" = "true" ]; then |
352 | exit 1 | |
353 | fi | |
354 | ||
355 | # Interactive mode | |
356 | echo "" | |
357 | ||
358 | if [ -z "$DOWNLOAD_DIST" ]; then | |
359 | echo -n "Distribution: " | |
360 | read DOWNLOAD_DIST | |
361 | fi | |
362 | ||
363 | if [ -z "$DOWNLOAD_RELEASE" ]; then | |
364 | echo -n "Release: " | |
365 | read DOWNLOAD_RELEASE | |
366 | fi | |
367 | ||
368 | if [ -z "$DOWNLOAD_ARCH" ]; then | |
369 | echo -n "Architecture: " | |
370 | read DOWNLOAD_ARCH | |
371 | fi | |
372 | ||
373 | echo "" | |
10a5fab6 SG |
374 | fi |
375 | ||
71d3a659 | 376 | # Setup the cache |
f74e080c | 377 | if [ "$DOWNLOAD_TARGET" = "system" ]; then |
b56661fe | 378 | LXC_CACHE_BASE="$LOCALSTATEDIR/cache/lxc/" |
71d3a659 SG |
379 | else |
380 | LXC_CACHE_BASE="$HOME/.cache/lxc/" | |
71d3a659 SG |
381 | fi |
382 | ||
6dc6f80b KC |
383 | # Allow the setting of the LXC_CACHE_PATH with the usage of environment variables. |
384 | LXC_CACHE_PATH=${LXC_CACHE_PATH:-"$LXC_CACHE_BASE"} | |
385 | LXC_CACHE_PATH=$LXC_CACHE_PATH/download/$DOWNLOAD_DIST | |
b56661fe SG |
386 | LXC_CACHE_PATH="$LXC_CACHE_PATH/$DOWNLOAD_RELEASE/$DOWNLOAD_ARCH/" |
387 | LXC_CACHE_PATH="$LXC_CACHE_PATH/$DOWNLOAD_VARIANT" | |
388 | ||
71d3a659 SG |
389 | if [ -d "$LXC_CACHE_PATH" ]; then |
390 | if [ "$DOWNLOAD_FLUSH_CACHE" = "true" ]; then | |
391 | echo "Flushing the cache..." | |
392 | rm -Rf $LXC_CACHE_PATH | |
9accc2ef SG |
393 | elif [ "$DOWNLOAD_FORCE_CACHE" = "true" ]; then |
394 | DOWNLOAD_USE_CACHE="true" | |
71d3a659 SG |
395 | else |
396 | DOWNLOAD_USE_CACHE="true" | |
397 | if [ -e "$(relevant_file expiry)" ]; then | |
398 | if [ "$(cat $(relevant_file expiry))" -lt $(date +%s) ]; then | |
399 | echo "The cached copy has expired, re-downloading..." | |
400 | DOWNLOAD_USE_CACHE="false" | |
71d3a659 SG |
401 | fi |
402 | fi | |
403 | fi | |
404 | fi | |
405 | ||
406 | # Download what's needed | |
407 | if [ "$DOWNLOAD_USE_CACHE" = "false" ]; then | |
408 | # Initialize GPG | |
409 | gpg_setup | |
410 | ||
411 | # Grab the index | |
412 | DOWNLOAD_INDEX_PATH=/meta/1.0/index-${DOWNLOAD_MODE} | |
413 | ||
414 | echo "Downloading the image index" | |
415 | if ! download_file ${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL} \ | |
416 | ${DOWNLOAD_TEMP}/index noexit || | |
33aa351a | 417 | ! download_sig ${DOWNLOAD_INDEX_PATH}.${DOWNLOAD_COMPAT_LEVEL}.asc \ |
71d3a659 SG |
418 | ${DOWNLOAD_TEMP}/index.asc noexit; then |
419 | download_file ${DOWNLOAD_INDEX_PATH} ${DOWNLOAD_TEMP}/index normal | |
fad96766 | 420 | download_sig ${DOWNLOAD_INDEX_PATH}.asc \ |
33aa351a | 421 | ${DOWNLOAD_TEMP}/index.asc normal |
71d3a659 SG |
422 | fi |
423 | ||
424 | gpg_validate ${DOWNLOAD_TEMP}/index.asc | |
425 | ||
426 | # Parse it | |
427 | while read line; do | |
428 | # Basic CSV parser | |
429 | OLD_IFS=$IFS | |
430 | IFS=";" | |
431 | set -- $line | |
432 | IFS=$OLD_IFS | |
433 | ||
434 | if [ "$1" != "$DOWNLOAD_DIST" ] || \ | |
435 | [ "$2" != "$DOWNLOAD_RELEASE" ] || \ | |
436 | [ "$3" != "$DOWNLOAD_ARCH" ] || \ | |
437 | [ "$4" != "$DOWNLOAD_VARIANT" ] || \ | |
438 | [ -z "$6" ]; then | |
439 | continue | |
440 | fi | |
441 | ||
9accc2ef | 442 | DOWNLOAD_BUILD=$5 |
71d3a659 SG |
443 | DOWNLOAD_URL=$6 |
444 | break | |
445 | done < ${DOWNLOAD_TEMP}/index | |
446 | ||
447 | if [ -z "$DOWNLOAD_URL" ]; then | |
448 | echo "ERROR: Couldn't find a matching image." 1>&1 | |
449 | exit 1 | |
450 | fi | |
451 | ||
9accc2ef SG |
452 | if [ -d "$LXC_CACHE_PATH" ] && [ -f "$LXC_CACHE_PATH/build_id" ] && \ |
453 | [ "$(cat $LXC_CACHE_PATH/build_id)" = "$DOWNLOAD_BUILD" ]; then | |
454 | echo "The cache is already up to date." | |
455 | echo "Using image from local cache" | |
456 | else | |
457 | # Download the actual files | |
458 | echo "Downloading the rootfs" | |
459 | download_file $DOWNLOAD_URL/rootfs.tar.xz \ | |
460 | ${DOWNLOAD_TEMP}/rootfs.tar.xz normal | |
461 | download_sig $DOWNLOAD_URL/rootfs.tar.xz.asc \ | |
462 | ${DOWNLOAD_TEMP}/rootfs.tar.xz.asc normal | |
463 | gpg_validate ${DOWNLOAD_TEMP}/rootfs.tar.xz.asc | |
464 | ||
465 | echo "Downloading the metadata" | |
466 | download_file $DOWNLOAD_URL/meta.tar.xz \ | |
467 | ${DOWNLOAD_TEMP}/meta.tar.xz normal | |
468 | download_sig $DOWNLOAD_URL/meta.tar.xz.asc \ | |
469 | ${DOWNLOAD_TEMP}/meta.tar.xz.asc normal | |
470 | gpg_validate ${DOWNLOAD_TEMP}/meta.tar.xz.asc | |
471 | ||
472 | if [ -d $LXC_CACHE_PATH ]; then | |
473 | rm -Rf $LXC_CACHE_PATH | |
474 | fi | |
475 | mkdir -p $LXC_CACHE_PATH | |
476 | mv ${DOWNLOAD_TEMP}/rootfs.tar.xz $LXC_CACHE_PATH | |
477 | if ! tar Jxf ${DOWNLOAD_TEMP}/meta.tar.xz -C $LXC_CACHE_PATH; then | |
478 | echo "ERROR: Invalid rootfs tarball." 2>&1 | |
479 | exit 1 | |
480 | fi | |
71d3a659 | 481 | |
9accc2ef SG |
482 | echo $DOWNLOAD_BUILD > $LXC_CACHE_PATH/build_id |
483 | ||
484 | if [ -n "$LXC_MAPPED_UID" ] && [ "$LXC_MAPPED_UID" != "-1" ]; then | |
0d656b05 | 485 | chown -R $LXC_MAPPED_UID $LXC_CACHE_BASE >/dev/null 2>&1 || true |
9accc2ef | 486 | fi |
2133f58c SH |
487 | if [ -n "$LXC_MAPPED_GID" ] && [ "$LXC_MAPPED_GID" != "-1" ]; then |
488 | chgrp -R $LXC_MAPPED_GID $LXC_CACHE_BASE >/dev/null 2>&1 || true | |
489 | fi | |
9accc2ef | 490 | echo "The image cache is now ready" |
71d3a659 | 491 | fi |
71d3a659 SG |
492 | else |
493 | echo "Using image from local cache" | |
494 | fi | |
495 | ||
496 | # Unpack the rootfs | |
497 | echo "Unpacking the rootfs" | |
fecf101c SG |
498 | |
499 | EXCLUDES="" | |
500 | excludelist=$(relevant_file excludes) | |
501 | if [ -f "${excludelist}" ]; then | |
502 | while read line; do | |
503 | EXCLUDES="$EXCLUDES --exclude=$line" | |
504 | done < $excludelist | |
71d3a659 SG |
505 | fi |
506 | ||
fecf101c SG |
507 | tar --anchored ${EXCLUDES} --numeric-owner -xpJf \ |
508 | ${LXC_CACHE_PATH}/rootfs.tar.xz -C ${LXC_ROOTFS} | |
509 | ||
510 | mkdir -p ${LXC_ROOTFS}/dev/pts/ | |
511 | ||
71d3a659 SG |
512 | # Setup the configuration |
513 | configfile=$(relevant_file config) | |
514 | fstab=$(relevant_file fstab) | |
515 | if [ ! -e $configfile ]; then | |
516 | echo "ERROR: meta tarball is missing the configuration file" 1>&2 | |
517 | exit 1 | |
518 | fi | |
519 | ||
520 | ## Extract all the network config entries | |
521 | sed -i -e "/lxc.network/{w ${LXC_PATH}/config-network" -e "d}" \ | |
522 | ${LXC_PATH}/config | |
523 | ||
524 | ## Extract any other config entry | |
525 | sed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" ${LXC_PATH}/config | |
526 | ||
527 | ## Append the defaults | |
528 | echo "" >> ${LXC_PATH}/config | |
529 | echo "# Distribution configuration" >> ${LXC_PATH}/config | |
530 | cat $configfile >> ${LXC_PATH}/config | |
531 | ||
532 | ## Add the container-specific config | |
533 | echo "" >> ${LXC_PATH}/config | |
534 | echo "# Container specific configuration" >> ${LXC_PATH}/config | |
535 | if [ -e "${LXC_PATH}/config-auto" ]; then | |
536 | cat ${LXC_PATH}/config-auto >> ${LXC_PATH}/config | |
537 | rm ${LXC_PATH}/config-auto | |
538 | fi | |
539 | if [ -e "$fstab" ]; then | |
540 | echo "lxc.mount = ${LXC_PATH}/fstab" >> ${LXC_PATH}/config | |
541 | fi | |
542 | echo "lxc.utsname = ${LXC_NAME}" >> ${LXC_PATH}/config | |
543 | ||
544 | ## Re-add the previously removed network config | |
545 | if [ -e "${LXC_PATH}/config-network" ]; then | |
546 | echo "" >> ${LXC_PATH}/config | |
547 | echo "# Network configuration" >> ${LXC_PATH}/config | |
548 | cat ${LXC_PATH}/config-network >> ${LXC_PATH}/config | |
549 | rm ${LXC_PATH}/config-network | |
550 | fi | |
551 | ||
552 | TEMPLATE_FILES="${LXC_PATH}/config" | |
553 | ||
554 | # Setup the fstab | |
555 | if [ -e $fstab ]; then | |
556 | cp ${fstab} ${LXC_PATH}/fstab | |
557 | TEMPLATE_FILES="$TEMPLATE_FILES ${LXC_PATH}/fstab" | |
558 | fi | |
559 | ||
560 | # Look for extra templates | |
561 | if [ -e "$(relevant_file templates)" ]; then | |
562 | while read line; do | |
563 | fullpath=${LXC_ROOTFS}/$line | |
564 | [ ! -e "$fullpath" ] && continue | |
565 | TEMPLATE_FILES="$TEMPLATE_FILES $fullpath" | |
566 | done < $(relevant_file templates) | |
567 | fi | |
568 | ||
569 | # Replace variables in all templates | |
570 | for file in $TEMPLATE_FILES; do | |
fad96766 | 571 | [ ! -f "$file" ] && continue |
71d3a659 SG |
572 | |
573 | sed -i "s#LXC_NAME#$LXC_NAME#g" $file | |
574 | sed -i "s#LXC_PATH#$LXC_PATH#g" $file | |
575 | sed -i "s#LXC_ROOTFS#$LXC_ROOTFS#g" $file | |
576 | sed -i "s#LXC_TEMPLATE_CONFIG#$LXC_TEMPLATE_CONFIG#g" $file | |
577 | sed -i "s#LXC_HOOK_DIR#$LXC_HOOK_DIR#g" $file | |
578 | done | |
579 | ||
6e53ca56 SC |
580 | # prevent mingetty from calling vhangup(2) since it fails with userns on Centos / Oracle |
581 | if [ -f ${LXC_ROOTFS}/etc/init/tty.conf ]; then | |
582 | sed -i 's|mingetty|mingetty --nohangup|' ${LXC_ROOTFS}/etc/init/tty.conf | |
583 | fi | |
584 | ||
71d3a659 | 585 | if [ -n "$LXC_MAPPED_UID" ] && [ "$LXC_MAPPED_UID" != "-1" ]; then |
0d656b05 | 586 | chown $LXC_MAPPED_UID $LXC_PATH/config $LXC_PATH/fstab >/dev/null 2>&1 || true |
71d3a659 | 587 | fi |
2133f58c SH |
588 | if [ -n "$LXC_MAPPED_GID" ] && [ "$LXC_MAPPED_GID" != "-1" ]; then |
589 | chgrp $LXC_MAPPED_GID $LXC_PATH/config $LXC_PATH/fstab >/dev/null 2>&1 || true | |
590 | fi | |
71d3a659 SG |
591 | |
592 | if [ -e "$(relevant_file create-message)" ]; then | |
593 | echo "" | |
594 | echo "---" | |
595 | cat "$(relevant_file create-message)" | |
596 | fi | |
597 | ||
598 | exit 0 |