Very often people associated Java to quite bulky and difficult to use in the microservice context,
unless you have very large image containing the JRE. But since Java 9, Java did kind of catchup with
golang on the subject. Where you can obtain a standalone executable when we running go build,
java is now proposing jlink which always you to acheive a very similar result. The goal
of this post is to build a container image as small as possible running Java.
sudo add-apt-repository ppa:linuxuprising/java
Oracle Java 10 installer
Java binaries are not hosted in this PPA due to licensing. The packages in this PPA download and install Oracle Java 10 (JDK 10), so a working Internet connection is required.
PPA for https://www.linuxuprising.com/
For feedback, see https://www.linuxuprising.com/2018/04/install-oracle-java-10-in-ubuntu-or.html
More info: https://launchpad.net/~linuxuprising/+archive/ubuntu/java
Press [ENTER] to continue or ctrl-c to cancel adding it
gpg: keyring `/tmp/tmpf0lejdsg/secring.gpg' created
gpg: keyring `/tmp/tmpf0lejdsg/pubring.gpg' created
gpg: requesting key 73C3DB2A from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpf0lejdsg/trustdb.gpg: trustdb created
gpg: key 73C3DB2A: public key "Launchpad PPA for Linux Uprising" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
sudo apt-get update
Hit:1 http://ppa.launchpad.net/gophers/archive/ubuntu xenial InRelease
Hit:2 https://download.docker.com/linux/ubuntu xenial InRelease
Hit:3 https://deb.nodesource.com/node_10.x xenial InRelease
Get:4 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial InRelease [18.0 kB]
Get:6 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]
Hit:7 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Get:8 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Hit:9 http://ppa.launchpad.net/longsleep/golang-backports/ubuntu xenial InRelease
Get:10 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [796 kB]
Hit:12 http://ppa.launchpad.net/masterminds/glide/ubuntu xenial InRelease
Get:13 http://us.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages [728 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata [67.7 kB]
Get:15 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial/main amd64 Packages [1,956 B]
Get:16 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata [318 kB]
Get:17 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons [72.6 kB]
Hit:5 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
Get:18 http://us.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons [232 kB]
Get:19 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial/main Translation-en [1,004 B]
Get:20 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata [107 kB]
Get:21 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [640 kB]
Get:22 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons [142 kB]
Get:23 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [585 kB]
Get:24 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata [246 kB]
Get:25 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons [338 kB]
Get:26 http://us.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata [5,964 B]
Get:27 http://us.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata [3,324 B]
Get:28 http://us.archive.ubuntu.com/ubuntu xenial-backports/universe amd64 DEP-11 Metadata [5,100 B]
Fetched 4,630 kB in 3s (1,333 kB/s)
Reading package lists... Done
Download the package and install it. Note the download speed was at time really slow. Could not figure where the source of the issue was.
sudo apt-get install oracle-java10-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
gsfonts-x11 java-common oracle-java10-set-default
Suggested packages:
binfmt-support visualvm ttf-baekmuk | ttf-unfonts | ttf-unfonts-core ttf-kochi-gothic | ttf-sazanami-gothic ttf-kochi-mincho | ttf-sazanami-mincho ttf-arphic-uming
The following NEW packages will be installed:
gsfonts-x11 java-common oracle-java10-installer oracle-java10-set-default
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 46.6 kB of archives.
After this operation, 265 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 java-common all 0.56ubuntu2 [7,742 B]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 gsfonts-x11 all 0.24 [7,314 B]
Get:3 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial/main amd64 oracle-java10-installer amd64 10.0.1-1~linuxuprising+1 [29.0 kB]
Get:4 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial/main amd64 oracle-java10-set-default amd64 10.0.1-1~linuxuprising+1 [2,464 B]
Fetched 46.6 kB in 0s (55.0 kB/s)
Preconfiguring packages ...
Selecting previously unselected package java-common.
(Reading database ... 239646 files and directories currently installed.)
Preparing to unpack .../java-common_0.56ubuntu2_all.deb ...
Unpacking java-common (0.56ubuntu2) ...
Selecting previously unselected package oracle-java10-installer.
Preparing to unpack .../oracle-java10-installer_10.0.1-1~linuxuprising+1_amd64.deb ...
Unpacking oracle-java10-installer (10.0.1-1~linuxuprising+1) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5.2) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20180209-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ...
Setting up java-common (0.56ubuntu2) ...
Setting up oracle-java10-installer (10.0.1-1~linuxuprising+1) ...
No /var/cache/oracle-jdk10-installer/wgetrc file found.
Creating /var/cache/oracle-jdk10-installer/wgetrc and
using default oracle-java10-installer wgetrc settings for it.
Downloading Oracle Java 10...
--2018-07-01 11:04:19-- http://download.oracle.com/otn-pub/java/jdk/10.0.1+10/fb4372174a714e6b8c52526dc134031e/jdk-10.0.1_linux-x64_bin.tar.gz
Resolving download.oracle.com (download.oracle.com)... 23.45.132.164
Connecting to download.oracle.com (download.oracle.com)|23.45.132.164|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/10.0.1+10/fb4372174a714e6b8c52526dc134031e/jdk-10.0.1_linux-x64_bin.tar.gz [following]
--2018-07-01 11:04:19-- https://edelivery.oracle.com/otn-pub/java/jdk/10.0.1+10/fb4372174a714e6b8c52526dc134031e/jdk-10.0.1_linux-x64_bin.tar.gz
Resolving edelivery.oracle.com (edelivery.oracle.com)... 23.72.169.50
Connecting to edelivery.oracle.com (edelivery.oracle.com)|23.72.169.50|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: http://download.oracle.com/otn-pub/java/jdk/10.0.1+10/fb4372174a714e6b8c52526dc134031e/jdk-10.0.1_linux-x64_bin.tar.gz?AuthParam=1530461180_a5ea3c7d2dd9864c93b5a0d9d202ba07 [following]
--2018-07-01 11:04:20-- http://download.oracle.com/otn-pub/java/jdk/10.0.1+10/fb4372174a714e6b8c52526dc134031e/jdk-10.0.1_linux-x64_bin.tar.gz?AuthParam=1530461180_a5ea3c7d2dd9864c93b5a0d9d202ba07
Connecting to download.oracle.com (download.oracle.com)|23.45.132.164|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 354846158 (338M) [application/x-gzip]
Saving to: ‘jdk-10.0.1_linux-x64_bin.tar.gz’
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344064K ........ ........ ........ ........ ...... 100% 2.89M=6m40s
2018-07-01 11:11:00 (867 KB/s) - ‘jdk-10.0.1_linux-x64_bin.tar.gz’ saved [354846158/354846158]
Download done.
Removing outdated cached downloads...
update-alternatives: error: no alternatives for java
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/appletviewer to provide /usr/bin/appletviewer (appletviewer) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/idlj to provide /usr/bin/idlj (idlj) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jaotc to provide /usr/bin/jaotc (jaotc) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jar to provide /usr/bin/jar (jar) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jarsigner to provide /usr/bin/jarsigner (jarsigner) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/java to provide /usr/bin/java (java) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javac to provide /usr/bin/javac (javac) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javadoc to provide /usr/bin/javadoc (javadoc) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javap to provide /usr/bin/javap (javap) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javapackager to provide /usr/bin/javapackager (javapackager) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javaws to provide /usr/bin/javaws (javaws) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jcmd to provide /usr/bin/jcmd (jcmd) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jconsole to provide /usr/bin/jconsole (jconsole) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jcontrol to provide /usr/bin/jcontrol (jcontrol) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jdb to provide /usr/bin/jdb (jdb) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jdeprscan to provide /usr/bin/jdeprscan (jdeprscan) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jdeps to provide /usr/bin/jdeps (jdeps) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jhsdb to provide /usr/bin/jhsdb (jhsdb) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jimage to provide /usr/bin/jimage (jimage) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jinfo to provide /usr/bin/jinfo (jinfo) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jjs to provide /usr/bin/jjs (jjs) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jlink to provide /usr/bin/jlink (jlink) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jmap to provide /usr/bin/jmap (jmap) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jmc to provide /usr/bin/jmc (jmc) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jmod to provide /usr/bin/jmod (jmod) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jps to provide /usr/bin/jps (jps) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jrunscript to provide /usr/bin/jrunscript (jrunscript) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jshell to provide /usr/bin/jshell (jshell) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jstack to provide /usr/bin/jstack (jstack) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jstat to provide /usr/bin/jstat (jstat) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jstatd to provide /usr/bin/jstatd (jstatd) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/jweblauncher to provide /usr/bin/jweblauncher (jweblauncher) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/keytool to provide /usr/bin/keytool (keytool) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/orbd to provide /usr/bin/orbd (orbd) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/pack200 to provide /usr/bin/pack200 (pack200) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/rmic to provide /usr/bin/rmic (rmic) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/rmid to provide /usr/bin/rmid (rmid) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/rmiregistry to provide /usr/bin/rmiregistry (rmiregistry) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/schemagen to provide /usr/bin/schemagen (schemagen) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/serialver to provide /usr/bin/serialver (serialver) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/servertool to provide /usr/bin/servertool (servertool) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/tnameserv to provide /usr/bin/tnameserv (tnameserv) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/unpack200 to provide /usr/bin/unpack200 (unpack200) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/wsgen to provide /usr/bin/wsgen (wsgen) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/wsimport to provide /usr/bin/wsimport (wsimport) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/xjc to provide /usr/bin/xjc (xjc) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/lib/jexec to provide /usr/bin/jexec (jexec) in auto mode
update-alternatives: using /usr/lib/jvm/java-10-oracle/bin/javaws.real to provide /usr/bin/javaws.real (javaws.real) in auto mode
Oracle JDK 10 installed
#####Important########
To set Oracle jdk10 as default, install the "oracle-java10-set-default" package.
E.g.: sudo apt install oracle-java10-set-default.
Selecting previously unselected package oracle-java10-set-default.
(Reading database ... 239682 files and directories currently installed.)
Preparing to unpack .../oracle-java10-set-default_10.0.1-1~linuxuprising+1_amd64.deb ...
Unpacking oracle-java10-set-default (10.0.1-1~linuxuprising+1) ...
Selecting previously unselected package gsfonts-x11.
Preparing to unpack .../gsfonts-x11_0.24_all.deb ...
Unpacking gsfonts-x11 (0.24) ...
Processing triggers for fontconfig (2.11.94-0ubuntu1.1) ...
Setting up oracle-java10-set-default (10.0.1-1~linuxuprising+1) ...
Setting up gsfonts-x11 (0.24) ...
sudo apt-get install oracle-java10-set-default
Reading package lists... Done
Building dependency tree
Reading state information... Done
oracle-java10-set-default is already the newest version (10.0.1-1~linuxuprising+1).
oracle-java10-set-default set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
java --version
java 10.0.1 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)
javac --version
javac 10.0.1
Details on how to use the new java 10 to create the service are given in the following repo