Updating your container using Yellowdog Updater, Modified (YUM)

Update your container using Yellowdog Updater, Modified (YUM).

1. Edit the YUM configuration file:
   If you need a proxy server only, without a user, add the following line to the [main] section of the /etc/yum.conf.

   PROXY=http://your.proxy.server:port

   If the proxy requires a user name and password, add the following lines to the yum.conf file.

   proxy_username=yum-user 
   proxy_password=yum-user-password 
   

2. Search for the container that requires updating:

   docker exec -it container_id bash

3. Save the repository.

   cd /etc/yum.repos.d

   mv hv.repo hv.repo.old

   touch hv.repo

4. Copy the following contents to /etc/yum.repos.d/oracle-linux-ol7.repo:

   [ol7_latest]
   name=Oracle Linux $releasever Latest ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/latest/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=1
   [ol7_u0_base]
   name=Oracle Linux $releasever GA installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/0/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u1_base]
   name=Oracle Linux $releasever Update 1 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/1/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u2_base]
   name=Oracle Linux $releasever Update 2 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/2/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u3_base]
   name=Oracle Linux $releasever Update 3 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/3/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u4_base]
   name=Oracle Linux $releasever Update 4 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/4/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u5_base]
   name=Oracle Linux $releasever Update 5 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/5/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u6_base]
   name=Oracle Linux $releasever Update 6 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/6/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u7_base]
   name=Oracle Linux $releasever Update 7 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/7/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u8_base]
   name=Oracle Linux $releasever Update 8 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/8/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u9_base]
   name=Oracle Linux $releasever Update 9 installation media copy ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/9/base/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_optional_latest]
   name=Oracle Linux $releasever Optional Latest ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/optional/latest/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_addons]
   name=Oracle Linux $releasever Add ons ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/addons/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_MODRHCK]
   name=Latest RHCK with fixes from Oracle for Oracle Linux $releasever ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/MODRHCK/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   priority=20
   enabled=0
   [ol7_leapp]
   name=Leapp Upgrade Utilities for Oracle Linux $releasever ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/leapp/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_latest_archive]
   name=Oracle Linux $releasever Latest ($basearch) - Archive
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/latest/archive/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_optional_archive]
   name=Oracle Linux $releasever Optional ($basearch) - Archive
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/optional/archive/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_security_validation]
   name=Oracle Linux $releasever Update 3 ($basearch) Security Validations
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/security/validation/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0
   [ol7_u8_security_validation]
   name=Oracle Linux $releasever Update 8 ($basearch) Security Validations
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL7/8/security/validation/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=0

5. Perform software updates.

   yum install bind-utils

6. Validate the domain.

   nslookup

   [root@hid yum.repos.d]# nslookup example.com
   Server: 172.17.24.20
   Address: 172.17.24.20#53
   
   Non-authoritative answer:
   Name: example.com
   Address: 10.7.42.0
   Name: example.com
   Address: 10.7.7.33