Ubuntu 20.04にNexusリポジトリマネージャーをインストールして構成する方法

apt-get update -y

apt-get install openjdk-8-jdk -y

java -version

openjdk version "1.8.0_282"
OpenJDK Runtime Environment (build 1.8.0_282-8u282-b08-0ubuntu1~20.04-b08)
OpenJDK 64-Bit Server VM (build 25.282-b08, mixed mode)

useradd -M -d /opt/nexus -s /bin/bash -r nexus

echo "nexus ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/nexus

mkdir /opt/nexus  
wget https://sonatype-download.global.ssl.fastly.net/repository/downloads-prod-group/3/nexus-3.29.2-02-unix.tar.gz

tar xzf nexus-3.29.2-02-unix.tar.gz -C /opt/nexus --strip-components=1

chown -R nexus:nexus /opt/nexus

nano /opt/nexus/bin/nexus.vmoptions

-Xms1024m
-Xmx1024m
-XX:MaxDirectMemorySize=1024m

-XX:LogFile=./sonatype-work/nexus3/log/jvm.log
-XX:-OmitStackTraceInFastThrow
-Djava.net.preferIPv4Stack=true
-Dkaraf.home=.
-Dkaraf.base=.
-Dkaraf.etc=etc/karaf
-Djava.util.logging.config.file=/etc/karaf/java.util.logging.properties
-Dkaraf.data=./sonatype-work/nexus3
-Dkaraf.log=./sonatype-work/nexus3/log
-Djava.io.tmpdir=./sonatype-work/nexus3/tmp

nano /opt/nexus/bin/nexus.rc

run_as_user="nexus"

sudo -u nexus /opt/nexus/bin/nexus start

tail -f /opt/nexus/sonatype-work/nexus3/log/nexus.log

2021-02-23 12:20:51,839+0000 INFO  [jetty-main-1]  *SYSTEM com.softwarementors.extjs.djn.servlet.DirectJNgineServlet - Servlet GLOBAL configuration: registryConfiguratorClass=
2021-02-23 12:20:51,853+0000 INFO  [jetty-main-1]  *SYSTEM com.softwarementors.extjs.djn.jscodegen.CodeFileGenerator - Creating source files for APIs...
2021-02-23 12:20:52,582+0000 INFO  [jetty-main-1]  *SYSTEM org.sonatype.nexus.siesta.SiestaServlet - JAX-RS RuntimeDelegate: org.sonatype.nexus.siesta.internal.resteasy.SisuResteasyProviderFactory@649a69ca
2021-02-23 12:20:52,611+0000 INFO  [jetty-main-1]  *SYSTEM org.jboss.resteasy.plugins.validation.i18n - RESTEASY008550: Unable to find CDI supporting ValidatorFactory. Using default ValidatorFactory
2021-02-23 12:20:53,811+0000 INFO  [jetty-main-1]  *SYSTEM org.sonatype.nexus.siesta.SiestaServlet - Initialized
2021-02-23 12:20:53,817+0000 INFO  [jetty-main-1]  *SYSTEM org.sonatype.nexus.repository.httpbridge.internal.ViewServlet - Initialized
2021-02-23 12:20:53,852+0000 INFO  [jetty-main-1]  *SYSTEM org.eclipse.jetty.server.handler.ContextHandler - Started o.e.j.w.WebAppContext@7a65358d{Sonatype Nexus,/,file:///opt/nexus/public/,AVAILABLE}
2021-02-23 12:20:53,883+0000 INFO  [jetty-main-1]  *SYSTEM org.eclipse.jetty.server.AbstractConnector - Started ServerConnector@764a4935{HTTP/1.1, (http/1.1)}{0.0.0.0:8081}
2021-02-23 12:20:53,884+0000 INFO  [jetty-main-1]  *SYSTEM org.eclipse.jetty.server.Server - Started @37529ms
2021-02-23 12:20:53,884+0000 INFO  [jetty-main-1]  *SYSTEM org.sonatype.nexus.bootstrap.jetty.JettyServer - 
-------------------------------------------------

Started Sonatype Nexus OSS 3.29.2-02

-------------------------------------------------

ss -altnp | grep 8081

LISTEN    0         50                 0.0.0.0:8081             0.0.0.0:*        users:(("java",pid=5548,fd=795)) 

/opt/nexus/bin/nexus stop

nano /etc/systemd/system/nexus.service

[Unit]
Description=nexus service
After=network.target

[Service]
Type=forking
LimitNOFILE=65536
ExecStart=/opt/nexus/bin/nexus start
ExecStop=/opt/nexus/bin/nexus stop
User=nexus
Restart=on-abort

[Install]
WantedBy=multi-user.target

systemctl daemon-reload

systemctl start nexus  
systemctl enable nexus

systemctl status nexus

? nexus.service - nexus service
     Loaded: loaded (/etc/systemd/system/nexus.service; disabled; vendor preset: enabled)
     Active: active (running) since Tue 2021-02-23 12:22:49 UTC; 15s ago
    Process: 6181 ExecStart=/opt/nexus/bin/nexus start (code=exited, status=0/SUCCESS)
   Main PID: 6368 (java)
      Tasks: 40 (limit: 4691)
     Memory: 642.9M
     CGroup: /system.slice/nexus.service
             ??6368 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -server -Dinstall4j.jvmDir=/usr/lib/jvm/java-8-openjdk-amd64/jre -Dexe4j.mo>

Feb 23 12:22:49 ubuntu2004 systemd[1]: Starting nexus service...
Feb 23 12:22:49 ubuntu2004 nexus[6181]: Starting nexus
Feb 23 12:22:49 ubuntu2004 systemd[1]: Started nexus service.
lines 1-13/13 (END)

apt-get install nginx -y

nano /etc/nginx/conf.d/nexus.conf

upstream backend {
  server 127.0.0.1:8081;
}

server {
    listen 80;
    server_name nexus.example.com;

    location / {
        proxy_pass http://backend/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $http_host;

        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forward-Proto http;
        proxy_set_header X-Nginx-Proxy true;

        proxy_redirect off;
    }
}

ginx -t

nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

systemctl restart nginx

systemctl status nginx

? nginx.service - A high performance web server and a reverse proxy server
     Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2021-02-23 12:24:57 UTC; 4s ago
       Docs: man:nginx(8)
    Process: 7106 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
    Process: 7107 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
   Main PID: 7123 (nginx)
      Tasks: 3 (limit: 4691)
     Memory: 3.5M
     CGroup: /system.slice/nginx.service
             ??7123 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
             ??7124 nginx: worker process
             ??7125 nginx: worker process

Feb 23 12:24:57 ubuntu2004 systemd[1]: Starting A high performance web server and a reverse proxy server...
Feb 23 12:24:57 ubuntu2004 systemd[1]: Started A high performance web server and a reverse proxy server.

cat /opt/nexus/sonatype-work/nexus3/admin.password

b7c899cf-c6d3-4d11-a4cb-9a44e5d1787e