►
Description
Eclipse MicroProfile provides a set of APIs for creating cloud-native microservices. In this session, I will start with a blank sheet and build a set of well documented, configurable microservices that communicates with each other in a secure and fault tolerant way using implementations from a wide range of vendors.
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A
B
So
let
me
see
I'll
just
show
my
screen
again
sure
there
you
go
so
we
were
I,
guess
here
so
I
hope,
I
just
go
through
the
I
think
I.
If
I
said
that
I
was
going
to
demo,
most
of
them,
I
think
I
went
through
and
explained
what
they're
doing.
Otherwise
the
demo
will
show
it
pretty
pretty
good.
So
these
are
the
api's
that
system
they
are
based
on.
The
the
four
core
API
is
from
Jacare
E,
which
is
CDR
Jason,
pH,
x,
4's
and
Jason,
be
on
top
of
the
this.
B
In
detail
when
we
get
to
the
demo
so-
and
we
have
a
set
of
API,
which
is
micro,
ball
and
microphone,
is
then
implemented
by
implementations.
So
and
different
vendors
have
different
implementations
and
we
have
lot
of
them
and
thorn
tail
and
quarters
are
examples
from
redheads
we
have
Oakland
Liberty
and
Webster
Liberty
from
IBM
yeah
from
PRF
Haledon
from
Oracle
Apache
Tommy
from
Tama
tribe,
and
have
a
couple
of
smaller
initiatives
like
hammock,
cumulus,
EE
and
launcher
the
last
one
from
Fujitsu
and
in
this
talk,
I'll
use
five
of
these
to
demo.
B
And
today
there
are
several
options
to
package
or
or
build
your
docker
images
in
an
efficient
way
based
on
how
they
jar
fonts
are
packaged
either
they
they're
using
the
hollow
jar
approach
or
the
thin
jar
approach
or
or
just
a
fact,
our
approach,
and
you
have
some
tooling
like
chip
or
something
that
just
unwrapped,
sits
and
build
your
doctor
images
in
an
efficient
way.
So.
B
Is
running
in
today
is
just
from
command
line
using
Java
jar,
so
the
best
place
to
get
started
with
the
clip
from
Mike
Koval
is
microphone.
Hooked
IO
in
here
this
is
a
little
oldest
pages,
since
its
latest
version
is
written
3.2.
But
this
is
just
where
we
can
find
all
the
information
about
the
projects
about
the
contributors,
how
you
can
involve
in
projects
and
how
we
can
get
started
with
the
using
microphone
and
to
get
started.
B
The
best
way
is
to
use
the
starter
and
download
this
starter
here
right
now,
so,
but
first
I'll
just
show
which
applications
I
plan
on
building
today.
This
is
a
a
set
of
five
different
micro
services,
and
this
application
here
is
is
meant
for
helping
myself
when
I'm
of
conferences
speaking
because
sometimes
you
arrive
at
the
hotel
pretty
late
and
you
just
go
to
bed
and
when
you
wake
up
the
next
morning,
you
have
no
idea
where
we
are
so.
This
is
kind
of
a
helpful
service
to
figure
out
so
I
can
start
these
services.
B
B
A
B
I
going
to
speak
at
so
so
this
one
will
the
converse
service
will
use
the
location,
so
you
know
probably
familiar
with
the
DevOps
conferences
there.
They
are
everywhere.
So
it's
a
good
thing
to
do:
something's
the
name
with
the
location.
So
we
have
like
that
much
more,
of
course
Belgium
whatever
Ukraine
or
whatever
all
of
them.
So
so
so
the
conference
servers,
we
use
the
location
service
to
to
build
up
the
name
of
the
conference
and
also
all
these
a
time
service.
B
B
B
With
this,
and
in
order
to
do
this,
I'll
use
this
daughter.
So
when
you've
taken
the
starter,
this
is
how
it
looks
like,
and
it
is
very
similar
to
the
spring
booth,
the
national
I
sir.
So
if
I
get
started
here
and
say
I
want
create
their
locations
rivets.
Oh
then,
the
next
thing
I
have
to
choose.
There
is
which
version
of
Michael
am
I
using
and
as.
B
I
choose
a
version
of
my
football
I'll
get
options
of
which
implementation
are
one
years
in
this
case
it's
Don
Dale,
and
this
is
actually
all
you
have
to
do
so
in
in
the
the
Springwood
environment.
If
you
use
to
that,
you
have
to
pick
and
choose
whatever
technologies
you're
using
like
if
I'm
doing
a
rest,
endpoint,
you
have
to
pick
the
rests
of
if
you're
doing
some
data
stuff,
you
have
to
create
the
data
stuff.
Here
we
have
everything.
Is
there
for
you?
So
whatever
you.
B
Is
just
sample
code,
so
so
so
you
can
see
how
it's
used,
but
you
don't
have
to
fake
it.
Everything
is
there
configured
for
you
and
that's
kind
of
the
the
the
way
that
the
Java
you
use
your
car
ee
world
is
thinking
and
how
the
the
microphone
is
also
doing.
That
is
that
you
have
everything
it's
provided
for
you
by
and
implementations.
You
don't
have
to
build
your
application
server
really
wrong.
It's
there
for
you.
So
once
I've
done
this
I
just
picked
download
and,
as
you
remember,
this
is
only
the
local
server.
B
B
Hello
service,
which
will
just
say
hello,
world
and
all
of
them,
are
the
same
when
they
are
compared
to
run
on
the
server
you
paid.
So
as
I
said,
I
just
did
this
before
this
talks.
I
have
all
of
these
services
here.
I
have
the
conference
day
reading
location
at
time,
let's
let's
start
with
the
location
service
and
look
at
it.
So
as
you
see
it's
just
a
hello
world
hitter,
but
we
would
like
to
to
to
configure
this.
B
A
B
Property
from
microphone
comfy
saying
it
probably
has
a
name
called
place.
It
doesn't
default
value
if
I
forget
to
configure
it.
I'll
just
have
to
look
out
the
window
figure
out
where
I
am,
and
it
injects
this
from
the
into
the
variable
of
place.
So
what
I
to
do
here
is
just
return.
The
value
of
place.
B
A
B
One
is
building,
let's
just
look
at
some
of
the
other
applications
there,
so
the
grading
service,
for
example,
is
also
just
a
hello
world,
as
you
see
is
generated
for
us.
The
green
service
all
only
run
using
eight
pretty
neat
to
blame.
This
is
what
the
Liberty
obviously
be
doing
from
from
IBM.
That
gives
me
the
development
mode
in
my
project
here.
B
B
When
I
go
here
and
I
want
to
start
this
one,
oh,
that
right,
Java's,
jar
and
then
I'll
use
the
des
assistant
property
and
give
the
value
of
place
on
internet.
So
so
I
configure
my
service
live
on
internet
and
then
I
just
point
out
the
job
holidays.
But
for
me,
I'm
started
and
well.
We
are
doing
this.
Oh
let's
go
around
here.
B
B
So
yes,
getting
it's
my
figure
there,
it's
getting
very
tired,
but
let's
let
it
go,
and
while
we
are
at
we'll
go
and
look
at
the
the
architecture
again,
you
see
that
the
conference
application
should
be
calling
the
the
location
of
the
Asian
and
using
the
Internet
to
to
produce
the
text.
Jakarta
a
Tech
Talk
on
the
Internet.
B
Let's
go
back
to
this
one
and
see
that
the
hotel
is
getting
up
and
running,
and
while
it's
doing
that,
let's
go
into
the
conference
one
and
look
at
this
hello
controller,
and
this
one
also
returns
hello
world.
But
what
we
would
have
it
to
return
is
how
would
you
call
the
location
surface?
So
in
order
to
do
that,
we
have
to
create
a
interface
called
location
service.
We
can
call
it
wherever
we
want
services
to
give
this
any
name,
and
let's
an
attempt
this
one
way,
some
jax-rs
annotations.
B
So
let's
give
the
app
path,
and
this
is
the
location
and
let's
also
use
some
restaurant
annotation
like
the
register.
Rest
client.
So
the
register
this
client
for
work
for
to
be
a
using
the
the
microphone
rest,
client
API
right
and
then
we
also
want
to
have
the
client
errors
propagated
and
in
order
to
be
able
to
inject
it,
we
also
and
then
we
need
to
have
a
a
method
and
this
method
is
going
to
be
returning
a
string
and
it
should
be
location.
B
So
this
will
return
the
Jakari
a
Tech
Talk,
and
then
it
will
use
the
location,
services
off
location,
and
you
might
wonder
how
does
it
know
where
to
call
this
location
service,
because
the
only
thing
I've
done
is
to
create
an
interface.
Well,
it's
using
microphone
configuration
actually.
So
it
there
is
a
microphone
company.
Probably,
and
here
I
can
use
the
the
the
the
path,
the
fully
qualified
path
of
the
interface.
A
B
B
What
I
also
wanna
do
is
to
say
that
what
happens
if
the
location
service
is
is
if
the
service
is
not
over
running,
this
one
will
fail,
and
that
is
fine.
By
now,
I'll
use
the
circuit
breaker,
otherwise
in
the
application.
Otherwise
this
is
where
I
could
use
it.
So
what
I'll
do
is
to
start
this
conference
jar
and
this
one
isn't
configured
with
anything
since
I,
just
hard
coded
the
text
of
the
conference.
B
So
I'll
start
this
one,
and
this
one
runs
on
hell
alone
and
it's
it
usually
starts
pretty
pretty
quick,
so
it's
up
and
running
and
it
is
running
on
80
to
82.
So
if
I
go
here
and
to
data
conference,
it
should
saying
this
is
a
Jakarta
Tech
Talk
on
the
internet.
So
it's
getting
the
text
on
the
internet
from
the
legation
service,
so
so
far,
I've
connected
to
services
together
the
location
on
there.
So
I'm
able
to
hear
from
the
green
service
called
the
the
conference
service
to
get
Jakari
Tech
Talk
on
the
Internet.
B
A
B
So,
let's
see
yeah
it's
it's
up
and
running
so
now,
I
should
be
able
to
call
I
call
this
one
using
anyone.
Anyone,
okay,
hello
and
you
should
say
hello
world,
and
it
does
what's
also
interesting
here.
Is
you
get
something
some
of
the
other
specifications
for
free?
So
if
I
go
here
and
say
rather
than
saying
data,
hello,
let's
say
health
and.
B
Here
it
says
my
services
up,
but
this
isn't
almost
good
enough.
So
let's
add
some
other
health
checks
because
you
always
want
to
have
an
aliveness
probe
and
a
readiness
broke.
The
end
when
you
correct
your
applications
for
for
the
environment
to
know
that
your
service
is
alive,
so
we
should
allow
it
to
continue
and
when
is
ready,
so
the
load
balancer
knows
I
went
to
it,
Kim,
centrifuge
AIDS,
so
that's
quickly.
The
line
of
probes
and
Pollock
dig
alive
and
and
the
lightness
probe
is
implementing
the
health
check
interface
and
as
a
blindness
annotation.
B
B
A
B
It's
very
easy
to
create
your
own
health
checks
and
little
nasty,
redness
and
point
the
the.
In
the
same
way,
the
the
also
toxin
free
is
metrics.
So
if
I
go
in
here
and
say,
that's
the
Rutland
health
I
think
those
two
demerits
and
point
it
will
grate
a
lot
of
Prometheus
data
for
me-
and
this
is
all
good,
some
of
them
are
vendor
specific,
and
some
of
them
are
our
base
metrics.
So
you
can
rely
on
them
if
you
move
from
vendor
to
vendor,
but
what's.
A
B
B
B
Metrics
that
are
more
giving
more
data
than
just
the
counted,
but
there's
one
is
pretty
demo
friendly.
There
is
another
thing
that
you
get
for
free
from
Google
and
that
is
the
documentation.
Park
and,
as
you
know,
I
haven't
really
touched
this
code
at
all,
rather
than
adding
the
Linus
test.
But
what
I
get
from
here
is
the
the
the
open
API
documentation
or
the
llamó
that
describes
the
API,
and
this
is
the
there's
sort
of
thing
that
swagger
is
built
on.
So,
if
I
go
to
a
browser
wherever
this
is
near,
total.
B
B
B
A
B
B
So
what
we
also
need
to
do
is
to
go
into
the
home
page,
sorry,
healthy
properties
and
see
that
we
have
the
confessor
is
configured
and
is
running
on
82
82,
as
we
checked
here,
and
that
is
running.
So
we
also
need
to
create
the
timer
service
and
the
and
the
day
service
and
to
just
be
down
up
a
little
I.
Think
I
created
a
template
for
that.
B
B
B
A
B
B
B
B
B
B
B
B
It
says
hello
world
that
was
kind
of
what
not
expected.
Let
me
see
if
I
can
do
this,
so
it's
probably
because
of
me
compilation
errors.
So
let's
call
it
again
and
they
saying
you
have
a
the
County
Tech
Talk
on
internet
today,
at
some
time,
because
the
day
service
and
and
the
time
service
is
not
up
and
running
yet
and
they
should
have
saw
the
fault
line
hitting
so
what's
happening
here
is
that
the
greeting
service
is
calling
the
conference
service,
which
is
called
name
location
service.
B
Then
it
calls
the
the
time
service
and
the
day
they
service.
But
these
are
not
running.
So,
yes,
a
fallback
and
so
doesn't
know
what
which
day
it
is,
but
it
assumes
it
is
today
and
it
doesn't
know
which
time
it
is.
So
you
have
trajectory
conference
scheduled.
Let's
implement
these
day
in
time
service,
so
we
can
get
everything
up
and
running
so
it
will
start
with
the
the
day
service.
A
B
Today
and
just
get
the
day
of
the
week
use
a
English
version
of
it,
so
today's
weapon
safe
this
one
should
bring
down
website
and
then
let's
compile
this
one
and
while
it's
compiling,
let's
look
at
the
time
service
and
this
one
is
also
exactly
the
same
as
it
will
be
when
you
download
it
from
from
the
distorter.
So
let's
change
the
endpoint
of
time,
and
this
one
should
return
the
current
time.
B
B
B
B
B
We
see
that
it
says
Wednesday,
that's
all
good
I
was
look
at
the
time
service
and
it's
built.
So
let's
go
and
start
it
I
give
this
board
a
3
of
3.
So
so
it
is
the
same
as
as
we
have
in
the
architecture,
this
one's
running
on
a
t-33.
This
one
is
on
any
area.
I've
talked
at
these
lights
and
sorry
about
that,
but
it
was
a
little
bit
wasted
in
this
afternoon,
so
you
see
that
the
times
of
day
service
returns
Wednesday
and
that
the
time
service
is
going
to
return.
5
p.m.
B
B
A
Tech
Talk
on
internet
Wednesday
at
5:00
p.m.
so
everybody
have
everything
and
we're
pretty
safe,
but
there
is
one
thing
which
is
important
with
micro
services,
and
that
is
security,
and
particularly
about
whereabouts.
You
are
so
what
I
want
to
do
is
I
want
to
have
the
the
the
the
location
service
secured,
so
so
that
I'm,
not
returning
my
location
unless
I
have
something
proving
that
I'm
allowed
to
do
it,
and
what
I
wanted
to
do
is
to
have
a
JSON.
B
On
the
the
waiting
request
which
is
going
to
be
propagated
to
the
conference,
but
it's
not
going
to
be
used
there,
because
I
can
I
can,
if
I'm
fine
with
it
just
showing
which
conferences
Ireland
and
it's
going
to
be
sent
to
the
location
service
where
it's
gonna
be
evaluated
and
see
if
I
have
access
to
giving
out
the
location
and
then
returning
the
proper
response.
So
it's
only
going
to
be
used
in
the
thoraseal
application,
but
it's
gonna
propagate
through
this
is
the
JSON
web
token
propagation.
B
So
there
is
a
lot
I
configured
this
model,
it's
also
configured
with
the
proper
public
key.
So
it's
it's
possible
to
evaluate
TV
and
the
signature
of
the
JSON
web
token,
and
this
is
still
vendor
specific
how
he
did
so
in
infant
LED,
eight
with
the
product
defaults,
where
you
you
are
at,
where
the
whereabouts,
the
the
the
roles
are
defined
and
and
where
you
can
find
the
the
key
and
stuff
like
that,
and
the
issuer
has
to
be
this.
So
this
is
very
gonna.
Do
the
reconfiguration
of
don't
able
to
do
this?
You.
B
Some
of
the
confirmation
is
actually
possible
to
do
here
in
the
in
the
macro
file
config
as
well.
Another
thing
that
you
need
to
remember
to
configure
is
in
the
sense,
isn't
propagating
this
token,
and
this
token
is
is
procured
as
an
authorization.
Header
just
stop
this
woman
and
in
order
to
propagate
this
token
and
I
need
to
do
two
things.
One
thing
is
I
need
to
use
the
animation
register,
client
headers,
so
it's
actually
given
to
this
rest
flying
and
it's
being
propagated.
B
B
B
B
A
B
B
B
B
B
B
You
have
a
Tech
Talk
on
an
earth
Wednesday
at
4:00
p.m.
so
and
if
I
tamper
with
this
token,
somehow
we
turn
in
or
rather
than
the
cue
it'll
should
work
that.
Why
did
it
work?
That
was
weird?
You
have
something
scheduled
Wednesday
at
5
p.m.
so
so
the
token
has
to
be
correct.
In
order
to
go
to
work
and
missus,
you
have
a
Chavarria
Tech
Talk
on
Wednesday
at
5
p.m.
B
so
what
happened
there
is
that
I
supplied
a
token
to
the
grading
services
appropriated
to
the
conference
and
then
to
the
location,
which
is
the
only
service
that
was
actually
secured
here,
but
I
could
have
secured
all
of
them
and
the
token
would
have
been
needed
everywhere
and
with
that.
That
concludes
my
demo.
B
So
my
summary
is
just
a
couple
of
links.
My
customers
does.
The
aisle
is
very
good.
You
can
look
at
the
mighty
service
patterns,
abused
her
and
what's
what
the
male
is
kind
of
built
upon.
The
these
samples
of
this
code
is
on
my
gear
up.
My
group
of
all
is
best
if
your
out
Admiral
and
if
you're
in
person
in
Jakarta
ye
I
got
a
chicken
ayyyy
webpage
and
with
that
I
gonna,
stop
sharing
and
see.
If
there
are
any
questions
or
comments.
B
So
we
have
to
sing
of
them,
know
it's.
We
have
a
question
whether
the
singleton
is
mandatory.
No,
it's
not,
it
can
be
any
serious
code.
Usually
I
use
a
weaker
scope,
but
this
is
just
what
these
starter
generates.
So
so
yeah,
you
can
yourself
occasions
cope
to
recurse
cope
sessions,
go
wherever
the
fix
your
application
needs,
but
but
it's
usually
a
request,
cope
justice
to
where
to
go.
Then
we
have
another
question
we
can
use
me
for
service
has
an
issue.