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Description
CF-Motion: Live Migration of Cloud Foundry Applications and Data [I] - Xuebin He & Thinh Nguyen, Dell EMC
Cloud Foundry can provide application portability across multiple Cloud Foundry instances. Developers can push applications to different Cloud Foundry instances easily. However, data and services have traditionally tied applications to a Cloud, limiting application portability. With CF-Motion, applications and data can now migrate across multiple Cloud Providers with minimum to no downtime. In this talk, Xuebin and Thinh will walk through design and architecture of CF-Motion with a demo.
Xuebin He
Software Engineer, Dell EMC
CloudFoundry Contributor, working at Dell EMC Dojo focusing on research and advanced development. @hexuebin0201
Thinh Nguyen
Software Engineer, Dell EMC
A
Thank
you
everyone
for
coming
here
today
we
are
going
to
give
or
talk
about
the
staff
motion,
and
here
is
the
agenda
for
today.
First,
we
can
explain
why
we
here,
what
is
that
motion
and
how
it
works?
Then
we
have
our
demo
and
at
the
end
we
will
show
our
roadmap
and
our
future
work
and
some
other
related
work.
So
who
are
we
interesting.
A
B
B
B
B
Not
quite
we
do
it
sometime,
but
not
recently
anymore.
Actually,
we
have
two
main
focuses.
The
first
one
is:
we
contribute
to
Cloud
Foundry
projects
and
also
we
innovate
on
those
project
like
come
up
with
new
idea
and
we
doing
research.
The
second
purpose
is:
we
do
digital
transformation,
where
we
adventure
lies
pair
programming
and
test
Riven
development
among
the
internal
teams
at
games
there
EMC
do
ya,
know
MC,
so.
A
A
So
what
is
let
me
give
you
a
scenario
here.
So
I
assume
most
of
you
guys
are
two
barbers.
If
you
are
not
the
rapper
you're,
probably
in
the
wrong
room,
that's
cute,
so
we
always
have
some
applications
run
in
somewhere.
Let's
say:
I
have
applications
running
on
PETA
blasts
and
my
locations
highly
realized
on
distributed
database,
and
you
know,
I'm
really
curious
about
Bitcoin
and
I,
actually
look
into
the
Bitcoin
and
figure
out
they're.
A
Actually,
implementation,
which
is
blockchain,
is
way
more
cooler
than
Bitcoin
itself,
because
there's
another
version
of
how
you
do
the
distributed
database,
so
I
was
thinking.
Maybe
I
can
use
blockchain
in
my
own
application,
but
sadly,
Peter
bass
doesn't
support
that
yet,
but
happily
another
cloud
fan,
to
instance,
to
support
blockchain
and
service.
So
what
should
I
do.
A
You're
right,
it's
totally
true,
but
that's
the
only
the
first
step
so
normally
in
order
to
make
this
integration,
you
also
need
to
migrate
all
those
services
that
bind
it
to
your
application.
You
can
tap
into
all
the
steps
manually,
but
it's
kind
of
like
tedious.
You
might
have
mistakes
here.
Some
of
them
might
be
critical,
you
might
have
data
lose
or
the
certain
amount
of
downtown.
B
A
A
Yeah,
do
you
want
to
have
a
smaller
number
on
you,
P
SS
monthly
statements?
Yes,
okay,
found
out
fo
so
for
reasons
like
better
performance,
lower
costs,
a
stronger
security
or
compliance.
Sometimes
we
do
want
to
macro
the
application
from
one
cloud
foundry
instance
to
another,
even
as
the
Rieger
debugger
is
like
teen
Cal
Cal.
So
much
about
this
fact
as
a
company,
those
facts
attached
to
their
business,
a
lot
might
hurt
their
business.
A
So
let's
say
mo
operator
that
in
charge
of
hundred
applications,
all
the
applications
run
in
the
public
cloud,
because
the
private
house
we
just
abused,
has
so
many
benefits.
As
we
talked
like
strong,
better
performance,
lower
cost
as
stronger
security
of
compounds,
we
now
want
to
move
other
applications
to
the
private
ones.
So
what
else
should
I
do?
Like
previous
slides?
We
need
to
reboot
all
those
applications
again
and
also
all
those
services
it's
binding
to
those
applications
instead
of
doing
just
like
once
now.
I
have
to
do
it
again
and
again
and
again
so.
A
B
So
I
prepare
a
very
beautiful
architecture
slide
here.
Hope
you
guys
don't
fall
asleep
so
I.
Let's
say
that
I'm,
an
operator
right
and
I
have
my
Cloud
Foundry
instant
on
the
left
and
now
I
want
to
move
an
application
to
the
right
side
with
a
people
to
web
service.
So
I
check
my
environment
I
see
that's
an
application
binding
to
my
Seco
service.
Now,
looking
further
I
saw
traffic
coming
to
a
load
balancer
to
the
app.
B
So
how
do
I
move
this
using
safe
motion?
First
of
all,
I
will
push
what
what
we
call
it
a
safe
motion
agent
on
both
of
the
clouds,
then
using
the
command
light
to
we
say:
okay,
move
my
application,
then
the
tool
will
contact
the
agent
on
the
left
side
and
backing
up
the
data
into
a
storage
cloud,
storage
somewhere
and
then
on
the
right
side.
The
agent
gonna
pull
the
data
and
restore
it
into
a
new
mexico
instance.
B
A
A
So
we,
as
you
can
see,
we
have
two
windows
open
here.
The
top
one
is
the
autumnal
open
to
show
how
we
use
safe
motion
and
the
bottom
one
is
the
browser
open,
show
our
demo
applications.
So
we
already
have
two
Cloud
Foundry
instance.
We
have
our
internal
PCF,
we
call
it
dojo
and
we
also
have
a
pitiless.
So
our
goal
here
today
is
move
our
demo
application
running
in
our
internal
pizza,
which
is
told
you
to
P
SS.
A
So
let
get
started
first,
let's
take
a
look
at
what
we
have
on
our
internal
piece,
which
is
taught
you.
So
we
have
a
script.
Basically,
the
script
that
we
are
target
to
our
internal
PDF
and
do
the
login
the
stores
have
apps.
As
you
can
see,
we
have
two
applications.
One
is
the
agent
as
team
already
talked
another
one.
Is
the
demo
applications.
A
A
A
A
A
So
we
have
a
same
script
for
that.
We
are
logging
into
class
and
if
we
do
a
CFS,
we
should
be
able
to
see
only
one
application
running,
which
is
our
agent
yep.
So
let's
get
started
so
in
order
to
use
CF
motion,
we
need
to
give
him
three
different
arguments.
The
first
one
is
the
application
name.
You
want
to
use
for
the
on
the
destination
Cloud
Foundry
instance.
A
A
Ss
create
a
new
material
service
instance
there
and
then
let
the
agent,
the
town
retrieved
the
backup
file
we
just
pushed,
and
then
we
are
restoring
the
restoring
the
data
in
the
back
of
L
into
the
service
instance
we
just
created
and
then
after
everything
is
pinned
down,
find
the
service
instance
into
the
into
our
demo.
Applications
at
the
end
do
some
cleanup
and
the
last
step
is
to
start
allocation.
A
So
symbolically
we
should
be
able
to
see
our
second
applications
in
P
SS
environment.
So,
if
you
do
is
they
have
apps?
We
should
be
sail'd
demo
application
yup
and
now,
if
we
go
to
the
application,
we
should
be
able
to
see
to
see
the
the
album
we
just
added
so
those
this.
This
demo
basically
shows
how
we
use
that
motion
and
the
data
actually
precedes
the
during
the
migration.
B
A
Good
cash
you're
totally
right,
so
so
Cloud
Foundry,
oh
noes,
I'm.
Sorry,
Oh
Seth
motion
is
a
fairly
new
project.
We
just
work
on
couple
of
weeks,
so
we
have
a
lot
stories
in
a
backlog,
including
load
balancer.
So
let
me
give
example
for
for
noun
State
for
services.
If
you
are
using
step
motion,
there
will
be
no
downtime,
no
data
lose
for
our
state
of
all
services.
We
would
believe
we
would
do
the
incremental
backup
or
for
all
those
services.
Basically,
as
Tina
said
before,
we
are
constantly
to
the
backup.
A
So
when
it
come
to
the
point
we
want
to
do
the
mission.
The
difference
between
those
two
database
or
some
other
structure
would
be
very
minimal.
So
we
can
either
to
a
plug-in
update
with
minimum
data,
lose
or
$0
cause.
The
difference
between
those
two
is
could
be
optimum
to
zero
and
also
if
we
want
to
make
sure
that
there's
no
data
data
lose
at
all.
We
can
do
over
valuing
update
and
with
course,
the
difference
is
small,
its
optimal
to
0.
The
the
downtown
would
be
also
based
on
the
difference.
I.
B
See
and
in
the
future
we
actually,
we
introduced
something
called
a
policy
treatment
server,
so
this
server
will
keep
track
of
all
your
Cloud
Foundry
instances
and
then
it
will.
It
will
receive
something.
We
call
the
policy
files.
Let's
say
that
you
want
to
migrate
your
application,
because
your
cloud
foundry
instance
keep
failing
your
application
for
like
five
times
a
year,
then
you
can
specify
the
metric
for
this
policy
file
to
say,
migrate,
your
app,
because
if
you
see
that
it
reached
certain
limit
of
failure,
then
yep.
A
So
that's
all
like
features
we
want
to
implement
in
the
future
in
the
late
feature,
and
also
we
have
some
other
related
project
from
the
MC
one.
One
of
them
is
not
cool,
so
what
does
not
good
do
is.
Basically,
we
all
replicate
the
whole
production
environment,
not
just
the
data,
but
also
with
other
applications,
and
we
ants
into
our
development
environment.
A
A
Yeah,
no
mangroves,
let's
go
so,
let's
say
they're,
so
big,
but
slowly
crowded
into
our
production
environment
and
stays
there
forever,
because
our
department
environment
is
a
another
parallel
word
of
our
production
environment.
So
there's
another
version
of
this
part
crowded
into
a
department
so
traditionally
or
in
order
for
the
administrators
or
the
developers
to
debug
the
problem.
The
need
to
for
the
developer
is
only
allowed
to
look
at
all
the
logs
to
debug
the
problem.
A
It's
kind
of
really
hard
to
do
that
because
they
are
not
they're
not
allowed
to
charge
the
production
environment
at
all.
But
if
we
have
those
identical
development
environments,
though
it
would
be
very
easy
for
the
developers
to
debug
the
problem.
They
can
just
jump
into
the
development
environment
and
then
do
what
I
was
the
one
to
find
the
bug
and
what
I
was
the
one
to
kill
the
bug.
So
that's
what
does
not
go
and
we
are
also
have
another
project
which
is
yeah.
B
So
you
see
ten
and
Zubin
data
center
and
we
use
this
recover
buoy
product
to
back
up
my
data
into
his
data
center
and
because
I
was
so
rich
I
mean
I
will
be
so
rich
that
I
build
my
data
center
on
top
of
a
mountain,
because
I
have
I
want
to
have
a
good
view.
Finally,
I
realize
it's
a
volcano
Mountain,
so
it's
a
it
erupted
and
and
now
lava
eating
all
my
data,
so
I
have
to
call
zoom
in
like.
Can
you
back
me
up?
No.
C
A
Yeah,
so
we
did
some
investigation
previously,
so
one
of
them
is
to
do
the
incremental
backup
now
through
the
database,
but
through
the
file
system.
So
but
you
need
to
income,
you
need
to
in
control
of
the
backend
service,
so
you
can
have
control
of
the
file
system,
so
we
did
some
incremental
backup
of
the
file
system,
the
whole
file
system,
so
in
that
case
those
motor
would
works
for
every
single,
like
different
database.
Whatever
service
you
want.
Also,
we
have
we
figure
out
like
for
for
database
like
Masuku
or
MongoDB.
A
They
have.
They
have
the
way
for
us
to
do
the
incremental
backup
without
the
control
of
the
back-end
service
they
have.
The
log
fell
the
log
file
system
and
not
locked
out
mechanism.
So
basically,
if
you
have
the
database
access,
you
can
have
some
binary
to
generate
a
log
file
that
we
are
basically.
A
Like
information
about
the
whole
database,
you
can
have
this
log
file
to
create
or
identical
database,
so
we
can
like
do
the
incremental
backup
of
the
log
file
itself.
So
in
that
case
on
like
you,
even
though
we
don't
have
the
like,
a
control
of
the
back-end
service
use,
steel
can
be
able
to
do
the
incremental
backup
for
the
for
that
kind
of
service,
but
that
is
for
now
we
found
only
in
support
for
the
MongoDB
and
the
message
and
some
message
queue
related
database
yep.
Is
that
good
and
the
question?
Oh
cool,
yeah,.
B
B
A
D
A
B
A
D
A
So
that
loader
balancer
is
not
like
a
real
load
balancer,
it's
more
like
it's
more
like
our
traffic
redirection.
So
it's
not
that,
like
smart
act,
actually
like
a
dynamically
weighted,
the
load,
the
the
the
topic
is
only
like
for
the
domain
change
say
that,
like
your
applications
run
on
Pizza
app,
it
has
like
Rhonda
io
domain,
but
for
the
user
they
don't
want
to
notice
the
the
application
change
right.