140 lines
4.3 KiB
Python
Executable File
140 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python
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""" Dockerfile.py - generates and build dockerfiles
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Usage:
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Dockerfile.py [--arch=<arch> ...] [--skip=<arch> ...] [-v] [-t] [--no-build | --no-generate] [--no-cache]
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Options:
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--no-build Skip building the docker images
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--no-cache Build without using any cache data
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--no-generate Skip generating Dockerfiles from template
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--arch=<arch> What Architecture(s) to build [default: amd64 armel armhf aarch64]
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--skip=<arch> What Architectures(s) to skip [default: None]
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-v Print docker's command output [default: False]
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-t Print docker's build time [default: False]
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Examples:
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"""
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from docopt import docopt
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from jinja2 import Environment, FileSystemLoader
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from docopt import docopt
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import os
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import testinfra
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THIS_DIR = os.path.dirname(os.path.abspath(__file__))
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base_vars = {
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'name': 'pihole/pihole',
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'maintainer' : 'adam@diginc.us',
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's6_version' : 'v1.21.7.0',
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}
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os_base_vars = {
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'php_env_config': '/etc/lighttpd/conf-enabled/15-fastcgi-php.conf',
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'php_error_log': '/var/log/lighttpd/error.log'
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}
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__version__ = None
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dot = os.path.abspath('.')
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with open('{}/VERSION'.format(dot), 'r') as v:
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__version__ = v.read().strip()
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images = {
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__version__: [
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{
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'base': 'pihole/debian-base:latest',
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'arch': 'amd64'
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},
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{
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'base': 'multiarch/debian-debootstrap:armel-stretch-slim',
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'arch': 'armel'
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},
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{
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'base': 'multiarch/debian-debootstrap:armhf-stretch-slim',
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'arch': 'armhf'
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},
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{
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'base': 'multiarch/debian-debootstrap:arm64-stretch-slim',
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'arch': 'aarch64'
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}
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]
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}
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def generate_dockerfiles(args):
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if args['--no-generate']:
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print " ::: Skipping Dockerfile generation"
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return
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for version, archs in images.iteritems():
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for image in archs:
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if image['arch'] not in args['--arch'] or image['arch'] in args['--skip']:
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return
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s6arch = image['arch']
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if image['arch'] == 'armel':
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s6arch = 'arm'
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merged_data = dict(
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{ 'version': version }.items() +
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base_vars.items() +
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os_base_vars.items() +
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image.items() +
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{ 's6arch': s6arch }.items()
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)
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j2_env = Environment(loader=FileSystemLoader(THIS_DIR),
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trim_blocks=True)
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template = j2_env.get_template('Dockerfile.template')
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dockerfile = 'Dockerfile_{}'.format(image['arch'])
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with open(dockerfile, 'w') as f:
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f.write(template.render(pihole=merged_data))
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def build_dockerfiles(args):
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if args['--no-build']:
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print " ::: Skipping Dockerfile building"
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return
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for arch in args['--arch']:
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# TODO: include from external .py that can be shared with Dockerfile.py / Tests / deploy scripts '''
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if arch == 'armel':
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print "Skipping armel, incompatible upstream binaries/broken"
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continue
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build('pihole', arch, args)
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def build(docker_repo, arch, args):
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run_local = testinfra.get_backend(
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"local://"
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).get_module("Command").run
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dockerfile = 'Dockerfile_{}'.format(arch)
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repo_tag = '{}:{}_{}'.format(docker_repo, __version__, arch)
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cached_image = '{}/{}'.format('pihole', repo_tag)
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time=''
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if args['-t']:
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time='time '
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no_cache = ''
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if args['--no-cache']:
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no_cache = '--no-cache'
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build_command = '{time}docker build {no_cache} --pull --cache-from="{cache},{create_tag}" -f {dockerfile} -t {create_tag} .'\
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.format(time=time, no_cache=no_cache, cache=cached_image, dockerfile=dockerfile, create_tag=repo_tag)
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print " ::: Building {} into {}".format(dockerfile, repo_tag)
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if args['-v']:
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print build_command, '\n'
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build_result = run_local(build_command)
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if args['-v']:
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print build_result.stdout
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print build_result.stderr
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if build_result.rc != 0:
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print " ::: Building {} encountered an error".format(dockerfile)
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print build_result.stderr
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assert build_result.rc == 0
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if __name__ == '__main__':
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args = docopt(__doc__, version='Dockerfile 1.0')
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# print args
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generate_dockerfiles(args)
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build_dockerfiles(args)
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