Ubuntu 18.04.2 LTS上的Elasticsearch :没有发布文件

根据官方documentation,我正在尝试安装ELK。我在一个公司防火墙后面使用它自己的证书。因此,在第一步中,我使用wget的--no-check-certificate选项添加公钥。

但是,在将存储库添加到/etc/apt/sources.list.d/elastic-7.x.list之后,我在运行#apt-get update时出现以下错误

root@ubuntu:~# sudo apt-get update && sudo apt-get install elasticsearch
Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://archive.ubuntu.com/ubuntu bionic-security InRelease
Hit:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable InRelease
Err:5 https://artifacts.elastic.co/packages/7.x/apt stable Release
  Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown.  Could not handshake: Error in the certificate verification. [IP: 151.101.14.222 443]
Reading package lists... Done
E: The repository 'https://artifacts.elastic.co/packages/7.x/apt stable Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

我尝试在.list文件中添加[trusted=yes]

deb [trusted=yes] https://artifacts.elastic.co/packages/7.x/apt stable main

然而,这会导致在尝试更新apt时出现更多错误:

Ign:1 https://artifacts.elastic.co/packages/7.x/apt stable InRelease
Ign:2 https://artifacts.elastic.co/packages/7.x/apt stable Release
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Hit:5 http://archive.ubuntu.com/ubuntu bionic InRelease
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Hit:8 http://archive.ubuntu.com/ubuntu bionic-security InRelease
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Hit:11 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Ign:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Ign:3 https://artifacts.elastic.co/packages/7.x/apt stable/main all Packages
Err:4 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 Packages
  Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown.  Could not handshake: Error in the certificate verification. [IP: 151.101.14.222 443]
Ign:6 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en_US
Ign:7 https://artifacts.elastic.co/packages/7.x/apt stable/main Translation-en
Ign:9 https://artifacts.elastic.co/packages/7.x/apt stable/main amd64 c-n-f Metadata
Ign:10 https://artifacts.elastic.co/packages/7.x/apt stable/main all c-n-f Metadata
Reading package lists... Done
E: Failed to fetch https://artifacts.elastic.co/packages/7.x/apt/dists/stable/main/binary-amd64/Packages  Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown.  Could not handshake: Error in the certificate verification. [IP: 151.101.14.222 443]
E: Some index files failed to download. They have been ignored, or old ones used instead.

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