我为 maas 启动了 juju 环境。它运行良好，但是，由于网络启动，我的启动节点被格式化了。然后我删除了 juju 并删除了环境目录，然后重新安装了 juju，但它没有出现以下错误。请帮助我，我无法解决这个问题。
2014-09-18 12:12:11 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:11 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:11 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:12 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:13 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:13 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:13 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:14 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:15 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:15 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:15 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:16 DEBUG juju.mongo open.go:101 TLS handshake failed: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "juju-generated CA for environment \"maas\"")
2014-09-18 12:12:16 INFO juju.worker.peergrouper initiate.go:71 finished MaybeInitiateMongoServer
2014-09-18 12:12:16 ERROR juju.cmd supercommand.go:323 cannot initiate replica set: can't dial mongo to initiate replicaset: no reachable servers
ERROR bootstrap failed: subprocess encountered error code 1
Stopping instance...
Bootstrap failed, destroying environment
ERROR subprocess encountered error code 1
答案1
如果您删除了$HOME/.juju/包含 juju 生成的所有 SSH 密钥和证书的目录，而没有破坏 juju 环境，那么您将无法再从 juju 访问该环境，因为凭据和密钥已丢失。
我建议使用正确委托的节点（处于“就绪”状态）在 MAAS 上引导新环境。这样，节点将不会设置为 PXE 启动，而是从本地磁盘启动（例如，如果您重新启动它们，它们不会被清除，而是会按预期工作）。
答案2
因此，我重新启动了所有服务器，清除了 .juju 目录，但保留了我的 environment.yaml，但仍然收到“TLS 握手失败：x509：由未知机构签名的证书（可能是因为在尝试验证候选机构证书“juju 为环境 \“maas\”生成的 CA”时出现“crypto/rsa：验证错误”）”。
您还需要做什么才能重置？彻底清除 maas 服务器并重新安装？我尝试引导时出现此问题。它启动了已委托的机器，无需 pxe 引导并开始与其通信，然后出现握手失败错误。
好的，我执行了 juju destory-environment，重新启用了我的客户端服务器，并更改了我的 juju 环境名称，这似乎已经解决了这个问题。现在继续下一个。