build.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2013 W. Trevor King <wking@tremily.us>
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are met:
   7 #
   8 # * Redistributions of source code must retain the above copyright notice, this
   9 # list of conditions and the following disclaimer.
  10 #
  11 # * Redistributions in binary form must reproduce the above copyright notice,
  12 # this list of conditions and the following disclaimer in the documentation
  13 # and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  19 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26
  27 AUTHOR="${AUTHOR:-W. Trevor King <wking@tremily.us>}"
  28 NAMESPACE="${NAMESPACE:-wking}"
  29 DATE="${DATE:-20140206}"
  30 MIRROR="${MIRROR:-http://distfiles.gentoo.org/}"
  31 ARCH_URL="${ARCH_URL:-${MIRROR}releases/amd64/autobuilds/${DATE}/}"
  32 STAGE3="${STAGE3:-stage3-amd64-${DATE}.tar.bz2}"
  33 STAGE3_CONTENTS="${STAGE3_CONTENTS:-${STAGE3}.CONTENTS}"
  34 STAGE3_DIGESTS="${STAGE3_DIGESTS:-${STAGE3}.DIGESTS.asc}"
  35 PORTAGE_URL="${PORTAGE_URL:-${MIRROR}snapshots/}"
  36 PORTAGE="${PORTAGE:-portage-${DATE}.tar.xz}"
  37 PORTAGE_SIG="${PORTAGE_SIG:-${PORTAGE}.gpgsig}"
  38
  39 DOCKER_IO=$(command -v docker.io)
  40 DOCKER="${DOCKER:-${DOCKER_IO:-docker}}"
  41 BUILD_OPTS="${BUILD_OPTS:-}"
  42
  43 REPOS="${REPOS:-
  44         portage
  45         gentoo-portage
  46         gentoo-en-us
  47         gentoo-syslog
  48         gentoo-java
  49         buildbot
  50         docker-registry
  51         elasticsearch
  52         memcached
  53         nginx
  54         nginx-proxy
  55         kibana
  56         postgresql
  57         redis
  58         stunnel
  59         }"
  60
  61 die()
  62 {
  63         echo "$1"
  64         exit 1
  65 }
  66
  67 msg()
  68 {
  69         echo "$@"
  70 }
  71
  72 REALPATH="${REALPATH:-$(command -v realpath)}"
  73 if [ -z "${REALPATH}" ]; then
  74         READLINK="${READLINK:-$(command -v readlink)}"
  75         if [ -n "${READLINK}" ]; then
  76                 REALPATH="${READLINK} -f"
  77         else
  78                 die "need realpath or readlink to canonicalize paths"
  79         fi
  80 fi
  81
  82 # Does "${NAMESPACE}/${REPO}:${DATE}" exist?
  83 # Returns 0 (exists) or 1 (missing).
  84 #
  85 # Arguments:
  86 #
  87 # 1: REPO
  88 repo_exists()
  89 {
  90         REPO="${1}"
  91         IMAGES=$("${DOCKER}" images "${NAMESPACE}/${REPO}")
  92         MATCHES=$(echo "${IMAGES}" | grep "${DATE}")
  93         if [ -z "${MATCHES}" ]; then
  94                 return 1
  95         fi
  96         return 0
  97 }
  98
  99 # If they don't already exist:
 100 #
 101 # * download the stage3 and
 102 # * create "${NAMESPACE}/gentoo:${DATE}"
 103 #
 104 # Forcibly tag "${NAMESPACE}/gentoo:${DATE}" with "latest"
 105 import_stage3()
 106 {
 107         msg "import stage3"
 108         if ! repo_exists gentoo; then
 109                 # import stage3 image from Gentoo mirrors
 110
 111                 for FILE in "${STAGE3}" "${STAGE3_CONTENTS}" "${STAGE3_DIGESTS}"; do
 112                         if [ ! -f "downloads/${FILE}" ]; then
 113                                 wget -O "downloads/${FILE}" "${ARCH_URL}${FILE}"
 114                         fi
 115                 done
 116
 117                 gpg --verify "downloads/${STAGE3_DIGESTS}" || die "insecure digests"
 118                 SHA512_HASHES=$(grep -A1 SHA512 "downloads/${STAGE3_DIGESTS}" | grep -v '^--')
 119                 SHA512_CHECK=$(cd downloads/ && (echo "${SHA512_HASHES}" | sha512sum -c))
 120                 SHA512_FAILED=$(echo "${SHA512_CHECK}" | grep FAILED)
 121                 if [ -n "${SHA512_FAILED}" ]; then
 122                         die "${SHA512_FAILED}"
 123                 fi
 124
 125                 msg "import ${NAMESPACE}/gentoo:${DATE}"
 126                 "${DOCKER}" import - "${NAMESPACE}/gentoo:${DATE}" < "downloads/${STAGE3}" || die "failed to import"
 127         fi
 128
 129         msg "tag ${NAMESPACE}/gentoo:latest"
 130         "${DOCKER}" tag -f "${NAMESPACE}/gentoo:${DATE}" "${NAMESPACE}/gentoo:latest" || die "failed to tag"
 131 }
 132
 133 # If they don't already exist:
 134 #
 135 # * download a portage snapshot and
 136 # * create "${NAMESPACE}/portage-import:${DATE}"
 137 #
 138 # Forcibly tag "${NAMESPACE}/portage-import:${DATE}" with "latest"
 139 import_portage()
 140 {
 141         msg "import portage"
 142         if ! repo_exists portage-import; then
 143                 # import portage image from Gentoo mirrors
 144
 145                 for FILE in "${PORTAGE}" "${PORTAGE_SIG}"; do
 146                         if [ ! -f "downloads/${FILE}" ]; then
 147                                 wget -O "downloads/${FILE}" "${PORTAGE_URL}${FILE}"
 148                         fi
 149                 done
 150
 151                 gpg --verify "downloads/${PORTAGE_SIG}" "downloads/${PORTAGE}" || die "insecure digests"
 152
 153                 msg "import ${NAMESPACE}/portage-import:${DATE}"
 154                 "${DOCKER}" import - "${NAMESPACE}/portage-import:${DATE}" < "downloads/${PORTAGE}" || die "failed to import"
 155         fi
 156
 157         msg "tag ${NAMESPACE}/portage-import:latest"
 158         "${DOCKER}" tag -f "${NAMESPACE}/portage-import:${DATE}" "${NAMESPACE}/portage-import:latest" || die "failed to tag"
 159 }
 160
 161 # extract Busybox for the portage image
 162 #
 163 # Arguments:
 164 #
 165 # 1: SUBDIR target subdirectory for the busybox binary
 166 extract_busybox()
 167 {
 168         SUBDIR="${1}"
 169         msg "extract Busybox binary to ${SUBDIR}"
 170         THIS_DIR=$(dirname $($REALPATH $0))
 171         CONTAINER="${NAMESPACE}-gentoo-${DATE}-extract-busybox"
 172         "${DOCKER}" run -name "${CONTAINER}" -v "${THIS_DIR}/${SUBDIR}/":/tmp "${NAMESPACE}/gentoo:${DATE}" cp /bin/busybox /tmp/
 173         "${DOCKER}" rm "${CONTAINER}"
 174 }
 175
 176 # If it doesn't already exist:
 177 #
 178 # * create "${NAMESPACE}/${REPO}:${DATE}" from
 179 #   "${REPO}/Dockerfile.template"
 180 #
 181 # Forcibly tag "${NAMESPACE}/${REPO}:${DATE}" with "latest"
 182 #
 183 # Arguments:
 184 #
 185 # 1: REPO
 186 build_repo()
 187 {
 188         REPO="${1}"
 189         msg "build repo ${REPO}"
 190         if ! repo_exists "${REPO}"; then
 191                 if [ "${REPO}" = portage ]; then
 192                         extract_busybox "${REPO}"
 193                 fi
 194
 195                 env -i \
 196                         NAMESPACE="${NAMESPACE}" \
 197                         TAG="${DATE}" \
 198                         MAINTAINER="${AUTHOR}" \
 199                         envsubst '
 200                                 ${NAMESPACE}
 201                                 ${TAG}
 202                                 ${MAINTAINER}
 203                                 ' \
 204                                 < "${REPO}/Dockerfile.template" > "${REPO}/Dockerfile"
 205
 206                 msg "build ${NAMESPACE}/${REPO}:${DATE}"
 207                 "${DOCKER}" build ${BUILD_OPTS} -t "${NAMESPACE}/${REPO}:${DATE}" "${REPO}" || die "failed to build"
 208         fi
 209         msg "tag ${NAMESPACE}/${REPO}:latest"
 210         "${DOCKER}" tag -f "${NAMESPACE}/${REPO}:${DATE}" "${NAMESPACE}/${REPO}:latest" || die "failed to tag"
 211 }
 212
 213 build()
 214 {
 215         import_stage3
 216         import_portage
 217
 218         for REPO in ${REPOS}; do
 219                 build_repo "${REPO}"
 220         done
 221 }
 222
 223 missing()
 224 {
 225         for REPO in gentoo portage-import ${REPOS}; do
 226                 if ! repo_exists "${REPO}"; then
 227                         msg "${REPO}"
 228                 fi
 229         done
 230 }
 231
 232 ACTION="${1:-build}"
 233
 234 case "${ACTION}" in
 235 build) build ;;
 236 missing) missing ;;
 237 --help) msg "usage: ${0} [--help] {build|missing}" ;;
 238 *) die "invalid action '${ACTION}'" ;;
 239 esac