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blendle/base

Provides some easy helpers on top of the extremely lightweight
gliderlabs/alpine:3.2 image to use when downloading, compiling and verifying
binaries during your own image build process.

This base image clocks in at 7.549 MB (courtesy of the Alpine image), making
it ideal use as a stepping stone for more complicated images.

built-in helpers

bnl-apk-install-build-deps

Installs base packages usually required when building binaries from source:

  • g++=4.8.3-r0
  • gcc=4.8.3-r0
  • make=4.1-r0
  • file=5.22-r0
  • autoconf=2.69-r0
  • automake=1.14.1-r0
  • coreutils=8.23-r0

bnl-apl-install-download-deps

Installs base packages used during most download/extract operations:

  • curl=7.39.0-r0
  • tar=1.28-r0
  • gpgme=1.5.1-r0

example:

RUN bnl-apk-install-download-deps \
    && curl -sSL https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64 | \
       tar zxf - -C /usr/local/bin --strip 1 \
    && apk del download-deps

bnl-download-and-verify

Used to download files and verify the integrity and authenticity of the file
using a cryptographic signature.

usage:

bnl-download-and-verify PGP_KEY SIGNATURE_FILE_URL [SOURCE_FILE_URL]

if SOURCE_FILE_URL is omitted, it is assumed to be SIGNATURE_FILE_URL
without the final extension.

example:

RUN bnl-download-and-verify BF357DD4 \
      https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64.asc

# curl -sSL -o gosu-amd64 https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64
# curl -sSL -o gosu-amd64.asc https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64.asc
# bnl-pgp-verify BF357DD4 gosu-amd64.asc gosu-amd64

bnl-make-install-from-source

Combines several make steps into a single command.

usage:

bnl-make-install-from-source PATH [OPTIONS]

example:

RUN bnl-make-install-from-source nginx-1.7.10 --with-http_ssl_module

# cd nginx-1.7.10
# ./configure --with-http_ssl_module
# make --jobs=8
# make install
# cd ..
# rm -r nginx-1.7.10

bnl-pgp-verify

Verifies file based on provided PGP key (see also bnl-download-and-verify).

usage:

bnl-pgp-verify PGP_KEY SIGNATURE_FILE SOURCE_FILE

example:

RUN bnl-pgp-verify BF357DD4 gosu-amd64.asc gosu-amd64

# gpg-agent --daemon
# gpg --verbose --keyserver pgp.mit.edu --recv-keys BF357DD4
# gpg --verbose --verify gosu-amd64.asc gosu-amd64
# pgrep gpg-agent | xargs kill
# rm gosu-amd64.asc

License

MIT - see the accompanying LICENSE file for details.

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blendle
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