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Cache terraform's providers between tests 

The provider binaries are in the hundreds of MBs and by defaulta are redownloaded into each integration tests' directory, this is a waste of bandwidth, time, and space.

TF supports specifying a provider cache directory [0] which will avoid redownloading them and storing them in multiple places, which should speed up the job time by a bit.

I was having trouble getting it to work with TF 0.12 so I bumped us up to the latest 0.13 beta (stable is scheduled for ~1 month from now)

[0] https://www.terraform.io/docs/configuration/providers.html#provider-plugin-cache
This commit is contained in:
Peter Rifel 2020-06-18 11:33:38 -05:00
parent a6b4ee0007
commit 5ad7eac3ae
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1 changed files with 6 additions and 3 deletions
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9
hack/verify-terraform.sh
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@ -26,17 +26,20 @@ CLUSTERS_0_11=(
)
# Terraform versions
TAG_0_12=0.12.24
TAG_0_13=0.13.0-beta2
TAG_0_11=0.11.14
PROVIDER_CACHE=$(mktemp -d)
trap '{ rm -rf ${PROVIDER_CACHE}; }' EXIT
RC=0
while IFS= read -r -d '' -u 3 test_dir; do
[ -f "${test_dir}/kubernetes.tf" ] || [ -f "${test_dir}/kubernetes.tf.json" ] || continue
echo -e "${test_dir}\n"
cluster=$(basename "${test_dir}")
kube::util::array_contains "${cluster}" "${CLUSTERS_0_11[@]}" && tag=$TAG_0_11 || tag=$TAG_0_12
kube::util::array_contains "${cluster}" "${CLUSTERS_0_11[@]}" && tag=$TAG_0_11 || tag=$TAG_0_13
docker run --rm -v "${test_dir}":"${test_dir}" -w "${test_dir}" --entrypoint=sh hashicorp/terraform:$tag -c '/bin/terraform init >/dev/null && /bin/terraform validate' || RC=$?
docker run --rm -e "TF_PLUGIN_CACHE_DIR=${PROVIDER_CACHE}" -v "${PROVIDER_CACHE}:${PROVIDER_CACHE}" -v "${test_dir}":"${test_dir}" -w "${test_dir}" --entrypoint=sh hashicorp/terraform:$tag -c '/bin/terraform init >/dev/null && /bin/terraform validate' || RC=$?
done 3< <(find "${KOPS_ROOT}/tests/integration/update_cluster" -type d -maxdepth 1 -print0)
if [ $RC != 0 ]; then