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fix(cache): add persistent volume for redis
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Signed-off-by: Bruce Becker <[email protected]>
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@brucellino
brucellino committed Jun 17, 2022
1 parent 3d2e679 commit 6430315
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Showing 2 changed files with 19 additions and 195 deletions.
4 changes: 2 additions & 2 deletions .secrets.baseline
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Original file line number Diff line number Diff line change
Expand Up @@ -100,10 +100,10 @@
"filename": "cache.nomad",
"hashed_secret": "d969831eb8a99cff8c02e681f43289e5d3d69664",
"is_verified": false,
"line_number": 187,
"line_number": 99,
"is_secret": false
}
]
},
"generated_at": "2022-05-30T08:18:31Z"
"generated_at": "2022-06-17T14:17:04Z"
}
210 changes: 17 additions & 193 deletions cache.nomad
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Original file line number Diff line number Diff line change
Expand Up @@ -24,30 +24,23 @@ job "cache" {
canary = 1
}
migrate {
# Specifies the number of task groups that can be migrated at the same
# time. This number must be less than the total count for the group as
# (count - max_parallel) will be left running during migrations.
max_parallel = 1

# Specifies the mechanism in which allocations health is determined. The
# potential values are "checks" or "task_states".
health_check = "checks"

# Specifies the minimum time the allocation must be in the healthy state
# before it is marked as healthy and unblocks further allocations from being
# migrated. This is specified using a label suffix like "30s" or "15m".
min_healthy_time = "10s"

# Specifies the deadline in which the allocation must be marked as healthy
# after which the allocation is automatically transitioned to unhealthy. This
# is specified using a label suffix like "2m" or "1h".
healthy_deadline = "5m"
}
group "cache" {
count = 1
volume "REDIS" {
type = "csi"
source = "REDIS"
attachment_mode = "file-system"
access_mode = "single-node-reader-only"
read_only = true
per_alloc = true
}
network {
port "db" {
static = 6379
to = 6379
}
}
Expand All @@ -63,226 +56,57 @@ job "cache" {
interval = "10s"
timeout = "2s"
}

}

# The "restart" stanza configures a group's behavior on task failure. If
# left unspecified, a default restart policy is used based on the job type.
#
# For more information and examples on the "restart" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/restart
#
restart {
# The number of attempts to run the job within the specified interval.

attempts = 2
interval = "30m"

# The "delay" parameter specifies the duration to wait before restarting
# a task after it has failed.
delay = "15s"

# The "mode" parameter controls what happens when a task has restarted
# "attempts" times within the interval. "delay" mode delays the next
# restart until the next interval. "fail" mode does not restart the task
# if "attempts" has been hit within the interval.
mode = "fail"
}

# The "ephemeral_disk" stanza instructs Nomad to utilize an ephemeral disk
# instead of a hard disk requirement. Clients using this stanza should
# not specify disk requirements in the resources stanza of the task. All
# tasks in this group will share the same ephemeral disk.
#
# For more information and examples on the "ephemeral_disk" stanza, please
# see the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/ephemeral_disk
#
ephemeral_disk {
# When sticky is true and the task group is updated, the scheduler
# will prefer to place the updated allocation on the same node and
# will migrate the data. This is useful for tasks that store data
# that should persist across allocation updates.
# sticky = true
#
# Setting migrate to true results in the allocation directory of a
# sticky allocation directory to be migrated.
# migrate = true
#
# The "size" parameter specifies the size in MB of shared ephemeral disk
# between tasks in the group.
sticky = true
migrate = true
size = 300
}

# The "affinity" stanza enables operators to express placement preferences
# based on node attributes or metadata.
#
# For more information and examples on the "affinity" stanza, please
# see the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/affinity
#
affinity {
attribute = "${node.datacenter}"


value = "dc1"


weight = 100
}


# The "spread" stanza allows operators to increase the failure tolerance of
# their applications by specifying a node attribute that allocations
# should be spread over.
#
# For more information and examples on the "spread" stanza, please
# see the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/spread
#
# spread {
# attribute specifies the name of a node attribute or metadata
# attribute = "${node.datacenter}"


# targets can be used to define desired percentages of allocations
# for each targeted attribute value.
#
# target "us-east1" {
# percent = 60
# }
# target "us-west1" {
# percent = 40
# }
# }

# The "task" stanza creates an individual unit of work, such as a Docker
# container, web application, or batch processing.
#
# For more information and examples on the "task" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/task
#
task "redis" {
# The "driver" parameter specifies the task driver that should be used to
# run the task.
driver = "docker"

# The "config" stanza specifies the driver configuration, which is passed
# directly to the driver to start the task. The details of configurations
# are specific to each driver, so please see specific driver
# documentation for more information.
config {
image = "public.ecr.aws/ubuntu/redis:latest"

ports = ["db"]
}
volume_mount {
volume = "REDIS"
destination = "${NOMAD_ALLOC_DIR}/volume"
}
env {
TZ = "Europe/Rome"
REDIS_PASSWORD = "temp"
}
# The "artifact" stanza instructs Nomad to download an artifact from a
# remote source prior to starting the task. This provides a convenient
# mechanism for downloading configuration files or data needed to run the
# task. It is possible to specify the "artifact" stanza multiple times to
# download multiple artifacts.
#
# For more information and examples on the "artifact" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/artifact
#
# artifact {
# source = "http://foo.com/artifact.tar.gz"
# options {
# checksum = "md5:c4aa853ad2215426eb7d70a21922e794"
# }
# }


# The "logs" stanza instructs the Nomad client on how many log files and
# the maximum size of those logs files to retain. Logging is enabled by
# default, but the "logs" stanza allows for finer-grained control over
# the log rotation and storage configuration.
#
# For more information and examples on the "logs" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/logs
#
logs {
max_files = 10
max_file_size = 15
}

# The "resources" stanza describes the requirements a task needs to
# execute. Resource requirements include memory, cpu, and more.
# This ensures the task will execute on a machine that contains enough
# resource capacity.
#
# For more information and examples on the "resources" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/resources
#
resources {
cpu = 500 # 500 MHz
memory = 256 # 256MB
cpu = 50 # 500 MHz
memory = 125 # 256MB
}


# The "template" stanza instructs Nomad to manage a template, such as
# a configuration file or script. This template can optionally pull data
# from Consul or Vault to populate runtime configuration data.
#
# For more information and examples on the "template" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/template
#
# template {
# data = "---\nkey: {{ key \"service/my-key\" }}"
# destination = "local/file.yml"
# change_mode = "signal"
# change_signal = "SIGHUP"
# }

# The "template" stanza can also be used to create environment variables
# for tasks that prefer those to config files. The task will be restarted
# when data pulled from Consul or Vault changes.
#
# template {
# data = "KEY={{ key \"service/my-key\" }}"
# destination = "local/file.env"
# env = true
# }

# The "vault" stanza instructs the Nomad client to acquire a token from
# a HashiCorp Vault server. The Nomad servers must be configured and
# authorized to communicate with Vault. By default, Nomad will inject
# The token into the job via an environment variable and make the token
# available to the "template" stanza. The Nomad client handles the renewal
# and revocation of the Vault token.
#
# For more information and examples on the "vault" stanza, please see
# the online documentation at:
#
# https://www.nomadproject.io/docs/job-specification/vault
#
# vault {
# policies = ["cdn", "frontend"]
# change_mode = "signal"
# change_signal = "SIGHUP"
# }

# Controls the timeout between signalling a task it will be killed
# and killing the task. If not set a default is used.
# kill_timeout = "20s"
}
}
}

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