症状

アドオンの管理/新規追加ページに移動すると、次のエラーが表示される。

The Atlassian Marketplace server is not reachable. To avoid problems when loading this page, you can disable the connection to the Marketplace server

The Confluence logs contain the following errors:

2013-10-29 14:30:17,194 WARN  [http-bio-7990-exec-5] user 870x497x1 1lzkc13 XXX.XXX.XXX.XXX,127.0.0.1 "GET /plugins/servlet/upm/marketplace HTTP/1.0" com.atlassian.upm.pac.PacClientImpl Error when querying application info from MPAC: com.atlassian.marketplace.client.MpacException: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated

原因

The Atlassian Marketplace needs to verify the SSL connection between Confluence and itself. This occurs because the certificate is missing or has been tampered with by the local Proxy.

ソリューション

To resolve this you need to manually import the certificates using the steps below:

1. Download the following certificates with the commands below and remove everything but the certificates themselves:
   

   Linux

   openssl s_client -connect marketplace.atlassian.com:443 < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > marketplace.atlassian.com.crt
   openssl s_client -connect plugins.atlassian.com:443 < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > plugins.atlassian.com.crt
   openssl s_client -connect api.media.atlassian.com:443 < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > api.media.atlassian.com.crt

   Windows

   openssl s_client -connect marketplace.atlassian.com:443 < NUL > marketplace.atlassian.com.crt
   openssl s_client -connect plugins.atlassian.com:443 < NUL > plugins.atlassian.com.crt
   openssl s_client -connect api.media.atlassian.com:443 < NUL > api.media.atlassian.com.crt

   Windows で証明書を保存したら、それらを編集し、"BEGIN CERTIFICATE" 行よりも前のすべての情報と "END CERTIFICATE" 行よりもあとのすべての情報を削除します。このステップは Linux では不要です。
   
   

2. And then import them into your truststore in this order:

   keytool -import -alias marketplace.atlassian.com:443 -keystore /path/to/truststore -file /path/to/marketplace.atlassian.com.crt
   keytool -import -alias plugins.atlassian.com:443 -keystore /path/to/truststore -file /path/to/plugins.atlassian.com.crt

   トラスト ストアは次のディレクトリに格納されています。

   • Windows/Linux: $JAVA_HOME/jre/lib/security/cacerts
   • Mac OS (サポート対象外): $JAVA_HOME/lib/security/cacerts

   If keytool prompts for a password, the default is 'changeit'.

Please see the following question on Atlassian Answers and Problems Connecting to the Atlassian Marketplace for further information.