Travis: Test with OpenSSL 1.1.0

[tiran]

BPO	32549
Nosy	@tiran, @iritkatriel
PRs	bpo-32549: Compile OpenSSL 1.1.0 on Travis CI #5180

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2020-10-21.16:33:09.641>
created_at = <Date 2018-01-14.10:39:47.645>
labels = ['type-feature', '3.7']
title = 'Travis: Test with OpenSSL 1.1.0'
updated_at = <Date 2020-10-21.16:33:09.640>
user = 'https://github.com/tiran'

bugs.python.org fields:

activity = <Date 2020-10-21.16:33:09.640>
actor = 'christian.heimes'
assignee = 'none'
closed = True
closed_date = <Date 2020-10-21.16:33:09.641>
closer = 'christian.heimes'
components = []
creation = <Date 2018-01-14.10:39:47.645>
creator = 'christian.heimes'
dependencies = []
files = []
hgrepos = []
issue_num = 32549
keywords = ['patch']
message_count = 3.0
messages = ['309916', '310112', '378730']
nosy_count = 2.0
nosy_names = ['christian.heimes', 'iritkatriel']
pr_nums = ['5180']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue32549'
versions = ['Python 3.7']

[tiran]

For several planned features and security improvements, at least OpenSSL 1.0.2 is required. OpenSSL 1.1.0 is preferred to test all new features. See discussion https://mail.python.org/pipermail/python-dev/2018-January/151718.html . However Travis CI uses Ubuntu 14.04 LTS, which comes with OpenSSL 1.0.1.

To address the problem, CPython has either to compile and install a local copy of OpenSSL, move to container-based testing or use a different CI provider with more recent infrastructure.

I have created a PR that uses an improved version of my multissl test helper to compile and install the latest copy of OpenSSL 1.1.0. The build is cached by Travis. I *think* it is necessary to build OpenSSL in master so PRs can use the cache. A daily Travis cron job on master should do the trick.

[tiran]

New changeset ced9cb5 by Christian Heimes in branch 'master':
bpo-32549: Compile OpenSSL 1.1.0 on Travis CI (bpo-5180)
ced9cb5

[iritkatriel]

This seems complete, can it be closed?