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Pratik raj
b9d9418334
Using "--no-cache-dir" flag in pip install ,make sure dowloaded packages by pip don't cached on system . This is a best practise which make sure to fetch ftom repo instead of using local cached one . Further , in case of Docker Containers , by restricing caching , we can reduce image size. In term of stats , it depends upon the number of python packages multiplied by their respective size . e.g for heavy packages with a lot of dependencies it reduce a lot by don't caching pip packages. Further , more detail information can be found at https://medium.com/sciforce/strategies-of-docker-images-optimization-2ca9cc5719b6
VM Images & Tests
All commands in this directory require the gcloud project to be set.
For example: gcloud config set project gvisor-kokoro-testing.
Images can be generated by using the vm_image rule. This rule will generate a
binary target that builds an image in an idempotent way, and can be referenced
from other rules.
For example:
vm_image(
name = "ubuntu",
project = "ubuntu-1604-lts",
family = "ubuntu-os-cloud",
scripts = [
"script.sh",
"other.sh",
],
)
These images can be built manually by executing the target. The output on
stdout will be the image id (in the current project).
For example:
$ bazel build :ubuntu
Images are always named per the hash of all the hermetic input scripts. This allows images to be memoized quickly and easily.
The vm_test rule can be used to execute a command remotely. This is still
under development however, and will likely change over time.
For example:
vm_test(
name = "mycommand",
image = ":ubuntu",
targets = [":test"],
)