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supervisor/hassio/dock/util.py
Pascal Vizeli 6c1456902e Update util.py (#92)
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2017-07-07 14:12:26 +02:00

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Python

"""HassIO docker utilitys."""
import re
from ..const import ARCH_AARCH64, ARCH_ARMHF, ARCH_I386, ARCH_AMD64
HASSIO_BASE_IMAGE = {
ARCH_ARMHF: "homeassistant/armhf-base:latest",
ARCH_AARCH64: "homeassistant/aarch64-base:latest",
ARCH_I386: "homeassistant/i386-base:latest",
ARCH_AMD64: "homeassistant/amd64-base:latest",
}
TMPL_IMAGE = re.compile(r"%%BASE_IMAGE%%")
def dockerfile_template(dockerfile, arch, version, meta_type):
"""Prepare a Hass.IO dockerfile."""
buff = []
hassio_image = HASSIO_BASE_IMAGE[arch]
custom_image = re.compile(r"^#{}:FROM".format(arch))
# read docker
with dockerfile.open('r') as dock_input:
for line in dock_input:
line = TMPL_IMAGE.sub(hassio_image, line)
line = custom_image.sub("FROM", line)
buff.append(line)
# add metadata
buff.append(create_metadata(version, arch, meta_type))
# write docker
with dockerfile.open('w') as dock_output:
dock_output.writelines(buff)
def create_metadata(version, arch, meta_type):
"""Generate docker label layer for hassio."""
return ('LABEL io.hass.version="{}" '
'io.hass.arch="{}" '
'io.hass.type="{}"').format(version, arch, meta_type)