4bab91b81b
Until we have LCOW support in the E2E environment (which requires a Windows 2019 test target), we need to constrain E2E tests to the appropriate kernel
110 lines
2.8 KiB
HCL
110 lines
2.8 KiB
HCL
job "volumes" {
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datacenters = ["dc1", "dc2"]
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constraint {
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attribute = "${attr.kernel.name}"
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value = "linux"
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}
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group "group" {
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volume "data" {
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type = "host"
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source = "shared_data"
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}
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task "docker_task" {
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driver = "docker"
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config {
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image = "busybox:1"
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command = "/bin/sh"
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args = ["/usr/local/bin/myapplication.sh"]
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mounts = [
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# this mount binds the task's own NOMAD_TASK_DIR directory as the
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# source, letting us map it to a more convenient location; this is a
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# frequently-used way to get templates into an arbitrary location in
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# the task for Docker
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{
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type = "bind"
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source = "local"
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target = "/usr/local/bin"
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readonly = true
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}
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]
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}
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# this is the host volume mount, which we'll write into in our task to
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# ensure we have persistent data
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volume_mount {
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volume = "data"
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destination = "/tmp/foo"
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}
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template {
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data = <<EOT
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#!/bin/sh
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echo ${NOMAD_ALLOC_ID} > /tmp/foo/${NOMAD_ALLOC_ID}
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sleep 3600
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EOT
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# this path is relative to the allocation's task directory:
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# /var/nomad/alloc/:alloc_id/:task_name
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# but Docker tasks can't see this folder except for the bind-mounted
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# directories inside it (./local ./secrets ./tmp)
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# so the only reason this works to write our script to execute from
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# /usr/local/bin is because of the 'mounts' section above.
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destination = "local/myapplication.sh"
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}
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resources {
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cpu = 256
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memory = 128
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}
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}
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task "exec_task" {
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driver = "exec"
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config {
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command = "/bin/sh"
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args = ["/usr/local/bin/myapplication.sh"]
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}
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# host volumes for exec tasks are more limited, so we're only going to read
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# data that the other task places there
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#
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# - we can't write unless the nobody user has permissions to write there
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# - we can't template into this location because the host_volume mounts
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# over the template (see https://github.com/hashicorp/nomad/issues/7796)
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volume_mount {
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volume = "data"
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destination = "/tmp/foo"
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read_only = true
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}
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template {
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data = <<EOT
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#!/bin/sh
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sleep 3600
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EOT
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# this path is relative to the allocation's task directory:
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# /var/nomad/alloc/:alloc_id/:task_name
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# which is the same as the root directory for exec tasks.
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# we just need to make sure this doesn't collide with the
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# chroot: https://www.nomadproject.io/docs/drivers/exec#chroot
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destination = "usr/local/bin/myapplication.sh"
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}
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resources {
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cpu = 256
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memory = 128
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}
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}
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}
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}
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