Add docker support

[malvads]

As I've seen from many users here, current support for RHEL8 or any other OS is deprecated due to the Python 2 issue. So, I've created a Docker version of it that should fix the dependency issues for any user who wants to run this on RHEL7, RHEL8, RHEL9, or any other OS.

The install_docker.sh script does the build and runs the container, also creating a script in /usr/bin

For example, you can run rhsecapi.sh CVE-2013-4113 CVE-2014-3669 CVE-2004-0230 CVE-2015-4642, and the result will be as executing the script in the main OS:

result:

Missing optional python module: argcomplete

  To enable bash auto-magic tab-completion, install it:
    yum/dnf install python-pip
    pip install argcomplete
    activate-global-python-argcomplete
    (Open new shell)

  To skip using argcomplete AND disable future printing of this message:
    touch ~/.rhsecapi-no-argcomplete
      OR
    touch /etc/rhsecapi-no-argcomplete

[NOTICE ] rhsda: Found 4 CVEs on cmdline
[NOTICE ] rhsda: Valid Red Hat CVE results retrieved: 3 of 4

CVE-2013-4113
  SEVERITY : Critical Impact
  DATE     : 2013-07-11
  BUGZILLA : 983689
  FIXED_RELEASES :
   Red Hat Enterprise Linux 3 Extended Lifecycle Support: [php-0:4.3.2-56.ent] via RHSA-2013:1063 (2013-07-15)
   Red Hat Enterprise Linux 4 Extended Lifecycle Support: [php-0:4.3.9-3.37.el4] via RHSA-2013:1063 (2013-07-15)
   Red Hat Enterprise Linux 5: [php-0:5.1.6-40.el5_9] via RHSA-2013:1049 (2013-07-12)
   Red Hat Enterprise Linux 5: [php53-0:5.3.3-13.el5_9.1] via RHSA-2013:1050 (2013-07-12)
   Red Hat Enterprise Linux 5.3 Long Life: [php-0:5.1.6-23.4.el5_3] via RHSA-2013:1061 (2013-07-15)
   Red Hat Enterprise Linux 5.6 EUS - Server Only: [php-0:5.1.6-27.el5_6.5] via RHSA-2013:1061 (2013-07-15)
   Red Hat Enterprise Linux 5.6 EUS - Server Only: [php53-0:5.3.3-1.el5_6.3] via RHSA-2013:1062 (2013-07-15)
   Red Hat Enterprise Linux 6: [php-0:5.3.3-23.el6_4] via RHSA-2013:1049 (2013-07-12)
   Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node Only: [php-0:5.3.3-3.el6_2.10] via RHSA-2013:1061 (2013-07-15)
   Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only: [php-0:5.3.3-14.el6_3.1] via RHSA-2013:1061 (2013-07-15)
  FIX_STATES :
   Not affected: Red Hat Enterprise Linux 7 [php]
   Not affected: Red Hat Software Collections [php54-php]

CVE-2014-3669
  SEVERITY : Moderate Impact
  DATE     : 2014-09-18
  BUGZILLA : 1154500
  FIXED_RELEASES :
   Red Hat Enterprise Linux 5: [php53-0:5.3.3-26.el5_11] via RHSA-2014:1768 (2014-10-30)
   Red Hat Enterprise Linux 5: [php-0:5.1.6-45.el5_11] via RHSA-2014:1824 (2014-11-06)
   Red Hat Enterprise Linux 6: [php-0:5.3.3-40.el6_6] via RHSA-2014:1767 (2014-10-30)
   Red Hat Enterprise Linux 6.5 Extended Update Support: [php-0:5.3.3-27.el6_5.3] via RHSA-2015:0021 (2015-01-08)
   Red Hat Enterprise Linux 7: [php-0:5.4.16-23.el7_0.3] via RHSA-2014:1767 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6: [php54-php-0:5.4.16-22.el6] via RHSA-2014:1765 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6: [php55-php-0:5.5.6-13.el6] via RHSA-2014:1766 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS: [php54-php-0:5.4.16-22.el6] via RHSA-2014:1765 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS: [php55-php-0:5.5.6-13.el6] via RHSA-2014:1766 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS: [php54-php-0:5.4.16-22.el6] via RHSA-2014:1765 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS: [php55-php-0:5.5.6-13.el6] via RHSA-2014:1766 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS: [php54-php-0:5.4.16-22.el6] via RHSA-2014:1765 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS: [php55-php-0:5.5.6-13.el6] via RHSA-2014:1766 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 7: [php54-php-0:5.4.16-22.el7] via RHSA-2014:1765 (2014-10-30)
   Red Hat Software Collections 1 for Red Hat Enterprise Linux 7: [php55-php-0:5.5.6-13.el7] via RHSA-2014:1766 (2014-10-30)

CVE-2004-0230
  BUGZILLA : No Bugzilla data
   Too new or too old? See: https://bugzilla.redhat.com/show_bug.cgi?id=CVE_legacy

CVE-2015-4642
  Not present in Red Hat CVE database
  Try https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4642

it creates a wrapper for the docker in /usr/bin/rhsecapi.sh that you can use with commands