[DOCS] http -> https, remove outdated plugin docs (#60380)

Plugin discovery documentation contained information about installing
Elasticsearch 2.0 and installing an oracle JDK, both of which is no
longer valid.

While noticing that the instructions used cleartext HTTP to install
packages, this commit replaces HTTPs links instead of HTTP where possible.

In addition a few community links have been removed, as they do not seem
to exist anymore.
This commit is contained in:
Alexander Reelsen 2020-07-31 21:58:38 +02:00 committed by GitHub
parent 947186719e
commit c7ac9e7073
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80 changed files with 188 additions and 242 deletions

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@ -24,14 +24,14 @@ platforms, but it is possible that it will work on other platforms too.
== Java (JVM) Version
Elasticsearch is built using Java, and includes a bundled version of
http://openjdk.java.net[OpenJDK] from the JDK maintainers (GPLv2+CE)
https://openjdk.java.net[OpenJDK] from the JDK maintainers (GPLv2+CE)
within each distribution. The bundled JVM is the recommended JVM and
is located within the `jdk` directory of the Elasticsearch home directory.
To use your own version of Java, set the `JAVA_HOME` environment variable.
If you must use a version of Java that is different from the bundled JVM,
we recommend using a link:/support/matrix[supported]
http://www.oracle.com/technetwork/java/eol-135779.html[LTS version of Java].
https://www.oracle.com/technetwork/java/eol-135779.html[LTS version of Java].
Elasticsearch will refuse to start if a known-bad version of Java is used.
The bundled JVM directory may be removed when using your own JVM.