CloudWatch Integration to ELK Stack

Mayank_Khudia · January 6, 2019, 5:29am

Hello Team,
I am trying to integrate CloudWatch Logs to ELK stack. I have successfully managed to install all 3 components of the stack. But still unable to monitor and visualize log streams from CloudWatch. I have set up the ELK stack on AWS t2.large EC2 instance in us-east-1 region.

Following are my config files for Logstash/ElasticSearch/Kibana respectively. Please help:
Logstash.yml

Settings file in YAML

Settings can be specified either in hierarchical form, e.g.:

pipeline:

batch:

size: 125

delay: 5

Or as flat keys:

pipeline.batch.size: 125

pipeline.batch.delay: 5

------------ Node identity ------------

Use a descriptive name for the node:

node.name: test

If omitted the node name will default to the machine's host name

------------ Data path ------------------

Which directory should be used by logstash and its plugins

for any persistent needs. Defaults to LOGSTASH_HOME/data

path.data: /var/lib/logstash

------------ Pipeline Settings --------------

The ID of the pipeline.

pipeline.id: main

Set the number of workers that will, in parallel, execute the filters+outputs

stage of the pipeline.

This defaults to the number of the host's CPU cores.

pipeline.workers: 2

How many events to retrieve from inputs before sending to filters+workers

pipeline.batch.size: 125

How long to wait in milliseconds while polling for the next event

before dispatching an undersized batch to filters+outputs

pipeline.batch.delay: 50

Force Logstash to exit during shutdown even if there are still inflight

events in memory. By default, logstash will refuse to quit until all

received events have been pushed to the outputs.

WARNING: enabling this can lead to data loss during shutdown

pipeline.unsafe_shutdown: false

------------ Pipeline Configuration Settings --------------

Where to fetch the pipeline configuration for the main pipeline

path.config:

Pipeline configuration string for the main pipeline

config.string:

At startup, test if the configuration is valid and exit (dry run)

config.test_and_exit: false

Periodically check if the configuration has changed and reload the pipeline

This can also be triggered manually through the SIGHUP signal

config.reload.automatic: false

#How often to check if the pipeline configuration has changed (in seconds)

config.reload.interval: 3s

Show fully compiled configuration as debug log message

NOTE: --log.level must be 'debug'

config.debug: false

When enabled, process escaped characters such as \n and " in strings in the

pipeline configuration files.

config.support_escapes: false

------------ Module Settings ---------------

Define modules here. Modules definitions must be defined as an array.

The simple way to see this is to prepend each `name` with a `-`, and keep

all associated variables under the `name` they are associated with, and

above the next, like this:

modules:

- name: MODULE_NAME

var.PLUGINTYPE1.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE1.PLUGINNAME1.KEY2: VALUE

var.PLUGINTYPE2.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE3.PLUGINNAME3.KEY1: VALUE

Module variable names must be in the format of

var.PLUGIN_TYPE.PLUGIN_NAME.KEY

modules:

------------ Cloud Settings ---------------

Define Elastic Cloud settings here.

Format of cloud.id is a base64 value e.g. dXMtZWFzdC0xLmF3cy5mb3VuZC5pbyRub3RhcmVhbCRpZGVudGlmaWVy

and it may have an label prefix e.g. staging:dXMtZ...

This will overwrite 'var.elasticsearch.hosts' and 'var.kibana.host'

cloud.id: <identifier>

Format of cloud.auth is: <user>:<pass>

This is optional

If supplied this will overwrite 'var.elasticsearch.username' and 'var.elasticsearch.password'

If supplied this will overwrite 'var.kibana.username' and 'var.kibana.password'

cloud.auth: elastic:<password>

------------ Queuing Settings --------------

Internal queuing model, "memory" for legacy in-memory based queuing and

"persisted" for disk-based acked queueing. Defaults is memory

queue.type: memory

If using queue.type: persisted, the directory path where the data files will be stored.

Default is path.data/queue

path.queue:

If using queue.type: persisted, the page data files size. The queue data consists of

append-only data files separated into pages. Default is 64mb

queue.page_capacity: 64mb

If using queue.type: persisted, the maximum number of unread events in the queue.

Default is 0 (unlimited)

queue.max_events: 0

If using queue.type: persisted, the total capacity of the queue in number of bytes.

If you would like more unacked events to be buffered in Logstash, you can increase the

capacity using this setting. Please make sure your disk drive has capacity greater than

the size specified here. If both max_bytes and max_events are specified, Logstash will pick

whichever criteria is reached first

Default is 1024mb or 1gb

queue.max_bytes: 1024mb

If using queue.type: persisted, the maximum number of acked events before forcing a checkpoint

Default is 1024, 0 for unlimited

queue.checkpoint.acks: 1024

If using queue.type: persisted, the maximum number of written events before forcing a checkpoint

Default is 1024, 0 for unlimited

queue.checkpoint.writes: 1024

If using queue.type: persisted, the interval in milliseconds when a checkpoint is forced on the head page

Default is 1000, 0 for no periodic checkpoint.

queue.checkpoint.interval: 1000

------------ Dead-Letter Queue Settings --------------

Flag to turn on dead-letter queue.

dead_letter_queue.enable: false

If using dead_letter_queue.enable: true, the maximum size of each dead letter queue. Entries

will be dropped if they would increase the size of the dead letter queue beyond this setting.

Default is 1024mb

dead_letter_queue.max_bytes: 1024mb

If using dead_letter_queue.enable: true, the directory path where the data files will be stored.

Default is path.data/dead_letter_queue

path.dead_letter_queue:

# ------------ Metrics Settings --------------
# Bind address for the metrics REST endpoint
# http.host: "127.0.0.1"
# Bind port for the metrics REST endpoint, this option also accept a range
# (9600-9700) and logstash will pick up the first available ports.
# http.port: 9600-9700

------------ Debugging Settings --------------

Options for log.level:

* fatal

* error

* warn

* info (default)

* debug

* trace

log.level: info

path.logs: /var/log/logstash

------------ Other Settings --------------

Where to find custom plugins

path.plugins:

Mayank_Khudia · January 6, 2019, 5:32am

Below is Logstash conf file under /etc/Logstash/conf.d/

input {

cloudwatch {

namespace => "AWS/EC2"

metrics => [ "CPUUtilization" ]

filters => { "tag:Group" => "Kibana" }

region => "us-east-1"

port =>

}

output {

elasticsearch { hosts => ["localhost:9200"] }

stdout { codec => rubydebug }

}

Mayank_Khudia · January 6, 2019, 5:33am

My ElasticSearch seems to be working giving me a response like:
{
"name" : "XYn_Lrk",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "D0lCfrNrTF62cNIVA1xlGA",
"version" : {
"number" : "6.2.4",
"build_hash" : "ccec39f",
"build_date" : "2018-04-12T20:37:28.497551Z",
"build_snapshot" : false,
"lucene_version" : "7.2.1",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}

Mayank_Khudia · January 6, 2019, 5:39am

Below is my kibana.yml file:

Kibana is served by a back end server. This setting specifies the port to use.

server.port: 5601

Specifies the address to which the Kibana server will bind. IP addresses and host names are both valid values.

The default is 'localhost', which usually means remote machines will not be able to connect.

To allow connections from remote users, set this parameter to a non-loopback address.

server.host: "localhost"

Enables you to specify a path to mount Kibana at if you are running behind a proxy.

Use the `server.rewriteBasePath` setting to tell Kibana if it should remove the basePath

from requests it receives, and to prevent a deprecation warning at startup.

This setting cannot end in a slash.

#server.basePath: ""

Specifies whether Kibana should rewrite requests that are prefixed with

`server.basePath` or require that they are rewritten by your reverse proxy.

This setting was effectively always `false` before Kibana 6.3 and will

default to `true` starting in Kibana 7.0.

#server.rewriteBasePath: false

The maximum payload size in bytes for incoming server requests.

#server.maxPayloadBytes: 1048576

The Kibana server's name. This is used for display purposes.

server.name: "KibanaDashboard"

The URL of the Elasticsearch instance to use for all your queries.

elasticsearch.url: "http://localhost:9200"

When this setting's value is true Kibana uses the hostname specified in the server.host

setting. When the value of this setting is false, Kibana uses the hostname of the host

that connects to this Kibana instance.

#elasticsearch.preserveHost: true

Kibana uses an index in Elasticsearch to store saved searches, visualizations and

dashboards. Kibana creates a new index if the index doesn't already exist.

#kibana.index: ".kibana"

The default application to load.

#kibana.defaultAppId: "home"

If your Elasticsearch is protected with basic authentication, these settings provide

the username and password that the Kibana server uses to perform maintenance on the Kibana

index at startup. Your Kibana users still need to authenticate with Elasticsearch, which

is proxied through the Kibana server.

#elasticsearch.username: "user"

#elasticsearch.password: "pass"

Enables SSL and paths to the PEM-format SSL certificate and SSL key files, respectively.

These settings enable SSL for outgoing requests from the Kibana server to the browser.

#server.ssl.enabled: false
server.ssl.certificate: /path/to/your/server.crt

#server.ssl.key: /path/to/your/server.key

Optional settings that provide the paths to the PEM-format SSL certificate and key files.

These files validate that your Elasticsearch backend uses the same key files.

#elasticsearch.ssl.certificate: /path/to/your/client.crt

#elasticsearch.ssl.key: /path/to/your/client.key

Optional setting that enables you to specify a path to the PEM file for the certificate

authority for your Elasticsearch instance.

#elasticsearch.ssl.certificateAuthorities: [ "/path/to/your/CA.pem" ]

To disregard the validity of SSL certificates, change this setting's value to 'none'.

#elasticsearch.ssl.verificationMode: full

Time in milliseconds to wait for Elasticsearch to respond to pings. Defaults to the value of

the elasticsearch.requestTimeout setting.

#elasticsearch.pingTimeout: 1500

Time in milliseconds to wait for responses from the back end or Elasticsearch. This value

must be a positive integer.

#elasticsearch.requestTimeout: 30000

List of Kibana client-side headers to send to Elasticsearch. To send no client-side

headers, set this value to (an empty list).

#elasticsearch.requestHeadersWhitelist: [ authorization ]

Header names and values that are sent to Elasticsearch. Any custom headers cannot be overwritten

by client-side headers, regardless of the elasticsearch.requestHeadersWhitelist configuration.

#elasticsearch.customHeaders: {}

Time in milliseconds for Elasticsearch to wait for responses from shards. Set to 0 to disable.

#elasticsearch.shardTimeout: 30000

Time in milliseconds to wait for Elasticsearch at Kibana startup before retrying.

#elasticsearch.startupTimeout: 5000

Logs queries sent to Elasticsearch. Requires logging.verbose set to true.

#elasticsearch.logQueries: false

Specifies the path where Kibana creates the process ID file.

#pid.file: /var/run/kibana.pid

Enables you specify a file where Kibana stores log output.

#logging.dest: stdout

Set the value of this setting to true to suppress all logging output.

#logging.silent: false

Set the value of this setting to true to suppress all logging output other than error messages.

#logging.quiet: false

Set the value of this setting to true to log all events, including system usage information

and all requests.

#logging.verbose: false

Set the interval in milliseconds to sample system and process performance

metrics. Minimum is 100ms. Defaults to 5000.

#ops.interval: 5000

The default locale. This locale can be used in certain circumstances to substitute any missing

translations.

#i18n.defaultLocale: "en"

system · February 3, 2019, 5:39am

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CloudWatch Integration to ELK Stack

Settings file in YAML

Settings can be specified either in hierarchical form, e.g.:

pipeline:

batch:

size: 125

delay: 5

Or as flat keys:

pipeline.batch.size: 125

pipeline.batch.delay: 5

------------ Node identity ------------

Use a descriptive name for the node:

node.name: test

If omitted the node name will default to the machine's host name

------------ Data path ------------------

Which directory should be used by logstash and its plugins

for any persistent needs. Defaults to LOGSTASH_HOME/data

------------ Pipeline Settings --------------

The ID of the pipeline.

pipeline.id: main

Set the number of workers that will, in parallel, execute the filters+outputs

stage of the pipeline.

This defaults to the number of the host's CPU cores.

pipeline.workers: 2

How many events to retrieve from inputs before sending to filters+workers

pipeline.batch.size: 125

How long to wait in milliseconds while polling for the next event

before dispatching an undersized batch to filters+outputs

pipeline.batch.delay: 50

Force Logstash to exit during shutdown even if there are still inflight

events in memory. By default, logstash will refuse to quit until all

received events have been pushed to the outputs.

WARNING: enabling this can lead to data loss during shutdown

pipeline.unsafe_shutdown: false

------------ Pipeline Configuration Settings --------------

Where to fetch the pipeline configuration for the main pipeline

path.config:

Pipeline configuration string for the main pipeline

config.string:

At startup, test if the configuration is valid and exit (dry run)

config.test_and_exit: false

Periodically check if the configuration has changed and reload the pipeline

This can also be triggered manually through the SIGHUP signal

config.reload.automatic: false

config.reload.interval: 3s

Show fully compiled configuration as debug log message

NOTE: --log.level must be 'debug'

config.debug: false

When enabled, process escaped characters such as \n and " in strings in the

pipeline configuration files.

config.support_escapes: false

------------ Module Settings ---------------

Define modules here. Modules definitions must be defined as an array.

The simple way to see this is to prepend each name with a -, and keep

all associated variables under the name they are associated with, and

above the next, like this:

modules:

- name: MODULE_NAME

var.PLUGINTYPE1.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE1.PLUGINNAME1.KEY2: VALUE

var.PLUGINTYPE2.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE3.PLUGINNAME3.KEY1: VALUE

Module variable names must be in the format of

var.PLUGIN_TYPE.PLUGIN_NAME.KEY

modules:

------------ Cloud Settings ---------------

Define Elastic Cloud settings here.

Format of cloud.id is a base64 value e.g. dXMtZWFzdC0xLmF3cy5mb3VuZC5pbyRub3RhcmVhbCRpZGVudGlmaWVy

and it may have an label prefix e.g. staging:dXMtZ...

This will overwrite 'var.elasticsearch.hosts' and 'var.kibana.host'

cloud.id: <identifier>

Format of cloud.auth is: <user>:<pass>

This is optional

If supplied this will overwrite 'var.elasticsearch.username' and 'var.elasticsearch.password'

If supplied this will overwrite 'var.kibana.username' and 'var.kibana.password'

cloud.auth: elastic:<password>

------------ Queuing Settings --------------

Internal queuing model, "memory" for legacy in-memory based queuing and

"persisted" for disk-based acked queueing. Defaults is memory

queue.type: memory

The simple way to see this is to prepend each `name` with a `-`, and keep

all associated variables under the `name` they are associated with, and

Use the `server.rewriteBasePath` setting to tell Kibana if it should remove the basePath

`server.basePath` or require that they are rewritten by your reverse proxy.

This setting was effectively always `false` before Kibana 6.3 and will

default to `true` starting in Kibana 7.0.