docker/Dockerfile.voltctl

# Copyright 2018-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

FROM busybox:1.31.1-glibc

RUN mkdir -p /usr/bin

# -------------------------------------------------------------------
# [VOL-5063] - branch==master install latest (tag ?!?)
#    else install release(d) version.
# -------------------------------------------------------------------
# https://api.github.com/repos/opencord/voltctl/releases/latest
#   - offers voltctl/releases/download/1.8.45 as released
# https://github.com/opencord/voltctl/releases
#   - offers v1.9.1 (latest released via build + tagging).
# -------------------------------------------------------------------
# RUN wget -O - https://github.com/opencord/voltctl/releases/download/v1.9.1/voltctl-1.9.1-linux-amd64 

# https://github.com/opencord/voltctl/releases/download/untagged-cd611c39178f25b95a87/voltctl-1.9.1-linux-amd64

RUN wget -q\
  -O /usr/bin/voltctl.tmp\
  https://github.com/opencord/voltctl/releases/download/v1.8.45/voltctl-1.8.45-linux-amd64

## -----------------------------------------------------
## Maintain a tiny window for rename to avoid contention
##   - Validate download by displaying version
##     - --version not supported by wget binary
##   - Detection and error recovery possible if release
##     binary corrupt or mia but potential for stale
##     command version to silently persist is a larger
##     testing issue so explicitly overwrite.
## -----------------------------------------------------
RUN chmod a+x /usr/bin/voltctl.tmp && sync
# RUN /usr/bin/voltctl.tmp --version
COPY volt.config /root/.volt/config
RUN mv -vf /usr/bin/voltctl.tmp /usr/bin/voltctl
RUN /usr/bin/voltctl completion bash >> /root/.bashrc

## -----------------------------------------------------------------------
## Infinite loop -- huh(?!?)
## Interrogate voltctl startup for status to avoid potential for
## container accumulation when downstream container shutdown fails.
## -----------------------------------------------------------------------
## If sleep is intended to keep the container alive for downstream tasks
## use handshakes and/or timeouts to avoid long term, idle, resource retention
## -----------------------------------------------------------------------
CMD ["sh", "-c", "sleep infinity"]

# [EOF]