Q. "SSL error: could not verify peer (Travis::Client::SSLError)" で travis コマンドが動かない

A. travis が依存している gem の切り替えが --adapter でできるので、次のように Net::HTTP に切り替える

travis login --adapter net-http

メモ

問題発生時のエラーログ

# -E : エラーをキャッチしないで落とす
travis login -E

** Loading "/home/gouf/.travis/config.yml"
** Loading gh
** GET "config"
**   took 0.19 seconds
Traceback (most recent call last):
    11: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/bin/travis:23:in `<main>'
    10: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/bin/travis:23:in `load'
     9: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/bin/travis:18:in `<top (required)>'
     8: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli.rb:64:in `run'
     7: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli/command.rb:198:in `execute'
     6: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli/login.rb:40:in `run'
     5: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli/login.rb:31:in `login'
     4: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli/login.rb:45:in `github'
     3: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/cli/api_command.rb:126:in `load_gh'
     2: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/client/session.rb:134:in `config'
     1: from /home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/client/session.rb:186:in `get_raw'
/home/gouf/.anyenv/envs/rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/travis-1.8.8/lib/travis/client/session.rb:216:in `raw': SSL error: could not verify peer (Travis::Client::SSLError)

レポートの内容

travis report

System
Ruby:                     Ruby 2.5.0-p0
Operating System:         Ubuntu 17.10
RubyGems:                 RubyGems 2.7.6

CLI
Version:                  1.8.8
Plugins:                  none
Auto-Completion:          yes
Last Version Check:       2018-03-29 11:13:18 +0900

Session
API Endpoint:             https://api.travis-ci.org/
Logged In:                SSL error: could not verify peer
Verify SSL:               yes
Enterprise:               no

Endpoints
org:                      https://api.travis-ci.org/ (access token, current)

---

travis report --adapter net-http

System
Ruby:                     Ruby 2.5.0-p0
Operating System:         Ubuntu 17.10
RubyGems:                 RubyGems 2.7.6

CLI
Version:                  1.8.8
Plugins:                  none
Auto-Completion:          yes
Last Version Check:       2018-03-29 11:13:18 +0900

Session
API Endpoint:             https://api.travis-ci.org/
Logged In:                as "gouf"
Verify SSL:               yes
Enterprise:               no

Endpoints
org:                      https://api.travis-ci.org/ (access token, current)

Link

• SSL error: could not verify peer · Issue #141 · travis-ci/travis.rb