data-plane-controller: controller for managing data-plane life cycles

The controller uses the recent `automations` crate to monitor structured
changes to a bound data_planes and drive the data-plane to convergence.

It's modeled as a CI/CD pipeline, where an indicated branch of our
dry-dock repo (containing Pulumi and Ansible infrastructure) is deployed
for the given data-plane.

The controller performs the full lifecycle required for rolling updates:

- `pulumi up` to create new resources or respond to replacements
- Awaiting DNS propagation
- Running the Ansible playbook to provision instances
- Running `pulumi up` to reflect readiness of started instances
- Awaiting DNS propagation (again)

It also periodically refreshes a stack from remote providers to detect
changed or deleted resources, such as EC2 instance replacements, and
responds accordingly to heal the infrastructure.

Cargo.toml

@@ -66,6 +66,7 @@ humantime = "2.1"
 humantime-serde = "1.1"
 itertools = "0.10"
 indexmap = { version = "1.8", features = ["serde"] }
+ipnetwork = { version = "0.19", features = ["serde"] }
 iri-string = "0.6.0"
 jemallocator = { version = "0.3", features = ["profiling"] }
 jemalloc-ctl = "0.3"
@@ -141,6 +142,7 @@ strum_macros = "0.24"
 superslice = "1.0"
 sqlx = { version = "0.6", features = [
     "chrono",
+    "ipnetwork",
     "json",
     "macros",
     "postgres",

crates/data-plane-controller/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "data-plane-controller"
+version.workspace = true
+rust-version.workspace = true
+edition.workspace = true
+authors.workspace = true
+homepage.workspace = true
+repository.workspace = true
+license.workspace = true
+
+[dependencies]
+async-process = { path = "../async-process" }
+automations = { path = "../automations" }
+models = { path = "../models" }
+ops = { path = "../ops" }
+
+anyhow = { workspace = true }
+chrono = { version = "0.4", features = ["serde"] }
+clap = { workspace = true }
+futures = { workspace = true }
+humantime = { workspace = true }
+humantime-serde = { workspace = true }
+ipnetwork = { workspace = true }
+itertools = { workspace = true }
+rustls = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+serde_yaml = { workspace = true }
+sqlx = { workspace = true }
+tempfile = { workspace = true }
+tokio = { workspace = true }
+tracing = { workspace = true }
+tracing-subscriber = { workspace = true }
+url = { workspace = true }