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modules/bootkube: fix error when a CA cert/key is provided #128
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# NOTE: Across this module, the following syntax is used at various places:
# `"${var.ca_cert == "" ? join(" ", tls_private_key.kube-ca.*.private_key_pem) : var.ca_key}"`
#
# Due to hashicorp/hil#50, both sides of conditions
# are evaluated, until one of them is discarded. Unfortunately, the
# `{tls_private_key/tls_self_signed_cert}.kube-ca` resources are created
# conditionally and might not be present - in which case an error is
# generated. Because a `count` is used on these ressources, the resources can be
# referenced as lists with the `.*` notation, and arrays are allowed to be
# empty. The `join()` interpolation function is then used to cast them back to
# a string. Since `count` can only be 0 or 1, the returned value is either empty
# (and discarded anyways) or the desired value.
Merged
s-urbaniak
reviewed
Mar 27, 2017
| # are evaluated, until one of them is discarded. Unfortunately, the | ||
| # `{tls_private_key/tls_self_signed_cert}.kube-ca` resources are created | ||
| # conditionally and might not be present - in which case an error is | ||
| # generated. Because a `count` is used on these ressources, the resources can be |
s-urbaniak
approved these changes
Mar 27, 2017
alexsomesan
approved these changes
Mar 27, 2017
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