.travis.yml in tpm-key_attestation-0.8.0 vs .travis.yml in tpm-key_attestation-0.9.0

@@ -1,27 +1,40 @@
 ---
 dist: bionic
 language: ruby
-cache: bundler
 
-rvm:
-  - ruby-head
-  - 2.7.0
-  - 2.6.5
-  - 2.5.7
-  - 2.4.9
+cache:
+  bundler: true
+  directories:
+    - /home/travis/.rvm/
 
+env:
+  - RB=2.7.1 LIBSSL=1.0
+  - RB=2.7.1 LIBSSL=1.1
+  - RB=2.6.6 LIBSSL=1.0
+  - RB=2.6.6 LIBSSL=1.1
+  - RB=2.5.8 LIBSSL=1.0
+  - RB=2.5.8 LIBSSL=1.1
+  - RB=2.4.10 LIBSSL=1.0
+  - RB=2.4.10 LIBSSL=1.1
+  - RB=ruby-head LIBSSL=1.0
+  - RB=ruby-head LIBSSL=1.1
+
 gemfile:
   - gemfiles/openssl_head.gemfile
+  - gemfiles/openssl_2_2.gemfile
   - gemfiles/openssl_2_1.gemfile
   - gemfiles/openssl_2_0.gemfile
   - gemfiles/openssl_default.gemfile
 
 matrix:
   fast_finish: true
   allow_failures:
-    - rvm: ruby-head
+    - env: RB=ruby-head LIBSSL=1.0
+    - env: RB=ruby-head LIBSSL=1.1
     - gemfile: gemfiles/openssl_head.gemfile
 
 before_install:
+  - ./install-openssl.sh
+  - ./install-ruby.sh
   - gem install bundler -v "~> 2.0"
   - rm Gemfile.lock