# A pool of Managed crawl proxies on the kvm2 provider — the multi-proxy
# counterpart to the single proxy_kvm2.yaml sample. Everything here boots on
# the one host the kvm2 entry configures (beelink); the proxies differ in the
# attributes crawlers select on, in size, and in image.
#
# Requires the same prerequisites as proxy_kvm2.yaml: a providers-config
# entry named "kvm2-home" and the kvm-ssh Secret that the kvm and kvm2
# providers share (docs/kvm2-provider.md).
#
# Deliberately NOT in kustomization.yaml: `kubectl apply -k config/samples`
# would boot every VM in here at once. Apply it on its own when you want the
# pool:
#
#     kubectl apply -f config/samples/proxy_kvm2_crawl_pool.yaml
#
# Crawlers reach these through the discovery API by attribute, e.g.
# `GET /v1/proxies?attr.purpose=crawl&healthy=true`, or by leasing one with
# the same selector. Attribute matching is exact equality, so keep the keys
# consistent across the pool and vary only the values you want to select on.
#
# The first Proxy for an image on the host waits for that image to download;
# the rest reuse the cached copy. debian-13 and ubuntu-24.04 are separate
# downloads, so the ubuntu member below is the slow one on a cold host.
---
# One cloud-init Secret shared by the whole pool: the proxies below point at
# it with secretRef instead of each carrying its own copy of the squid
# config. The crawl.example.com/cloud-init label is mandatory — the manager's
# cache only holds Secrets that carry it, so an unlabelled Secret is
# invisible to the operator and the Proxy never resolves.
#
# Editing this Secret changes the resolved cloud-init of every Proxy that
# references it, and that replaces each of their VMs. That is the trade for
# sharing one definition: convenient for a config rollout, disruptive if you
# only meant to touch one member. Give a member its own Secret (or an inline
# block) when it needs to diverge.
apiVersion: v1
kind: Secret
metadata:
  name: crawl-squid-cloud-init
  labels:
    crawl.example.com/cloud-init: "true"
type: Opaque
stringData:
  # The default key name; SecretKeySelector.key defaults to user-data, so
  # the proxies below omit it.
  user-data: |
    #cloud-config
    packages:
      - squid
    write_files:
      - path: /etc/squid/conf.d/proxy-operator.conf
        content: |
          http_port 3128
          http_access allow all
          via off
          forwarded_for off
    runcmd:
      - systemctl restart squid
    # Optional: log in with `ssh debian@<ip>` (or `ubuntu@<ip>` on the
    # ubuntu-24.04 member) to look around; `virsh console <name>` on the
    # host works too.
    # ssh_authorized_keys:
    #   - ssh-ed25519 AAAA... you@laptop
---
apiVersion: crawl.example.com/v1alpha1
kind: Proxy
metadata:
  name: crawl-home-1
spec:
  mode: Managed
  provider: kvm2-home
  placement:
    zone: beelink
    machineType: small
    image: debian-13
  port: 3128
  cloudInit:
    secretRef:
      name: crawl-squid-cloud-init
  attributes:
    geo: home
    purpose: crawl
    tier: general
---
apiVersion: crawl.example.com/v1alpha1
kind: Proxy
metadata:
  name: crawl-home-2
spec:
  mode: Managed
  provider: kvm2-home
  placement:
    zone: beelink
    machineType: small
    image: debian-13
  port: 3128
  cloudInit:
    secretRef:
      name: crawl-squid-cloud-init
  attributes:
    geo: home
    purpose: crawl
    tier: general
---
apiVersion: crawl.example.com/v1alpha1
kind: Proxy
metadata:
  name: crawl-home-3
spec:
  mode: Managed
  provider: kvm2-home
  placement:
    zone: beelink
    machineType: small
    image: debian-13
  port: 3128
  cloudInit:
    secretRef:
      name: crawl-squid-cloud-init
  attributes:
    geo: home
    purpose: crawl
    tier: general
---
# A heavier member: two vCPUs and 2 GiB from the medium machine type, a
# different base image, and room for more concurrent leases. tier=heavy is
# what a crawler selects on to land here rather than on the general members.
apiVersion: crawl.example.com/v1alpha1
kind: Proxy
metadata:
  name: crawl-home-heavy-1
spec:
  mode: Managed
  provider: kvm2-home
  placement:
    zone: beelink
    machineType: medium
    image: ubuntu-24.04
  port: 3128
  cloudInit:
    secretRef:
      name: crawl-squid-cloud-init
  attributes:
    geo: home
    purpose: crawl
    tier: heavy
  maxLeases: 10
---
# A member that probes harder than the pool default (30s interval, 3 failures
# to go unhealthy): a tighter loop takes a flapping proxy out of rotation
# sooner, at the cost of more probe traffic. Everything under healthCheck is
# defaulted, so set only what you want to change.
#
# This one also runs squid on a non-default port, which is why it carries its
# own inline cloud-init: spec.port and the http_port in the config have to
# agree, and the shared Secret above pins 3128.
apiVersion: crawl.example.com/v1alpha1
kind: Proxy
metadata:
  name: crawl-home-probe-fast-1
spec:
  mode: Managed
  provider: kvm2-home
  placement:
    zone: beelink
    machineType: small
    image: debian-13
  port: 8080
  cloudInit:
    inline: |
      #cloud-config
      packages:
        - squid
      write_files:
        - path: /etc/squid/conf.d/proxy-operator.conf
          content: |
            http_port 8080
            http_access allow all
            via off
            forwarded_for off
      runcmd:
        - systemctl restart squid
  healthCheck:
    intervalSeconds: 10
    timeoutSeconds: 3
    failureThreshold: 2
  attributes:
    geo: home
    purpose: crawl
    tier: general