type: user

role: user

content:
You are implementing Task B4 of the "DD Agent Logs via Vector" plan. This is the most consequential template change — it must be byte-identical to the locked baseline when `logs_intake_url` is null.

## Task Description

Add a gated block of two env vars (the OPW env vars) to the `datadog.env` list in the DD Agent module's helm values template.

**File to modify:** `/Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent/values.yaml.tftpl`

### Step 1: Add the gated OPW env-var block

In `values.yaml.tftpl`, locate the `datadog.env:` list (lines 57-81). It currently ends with the `DD_APM_PROBABILISTIC_SAMPLER_SAMPLING_PERCENTAGE` entry whose value is `15` on line 81. The next non-blank line should be `clusterAgent:` on line 82.

Between line 81 and line 82, INSERT this block (preserving exact indentation — 4 leading spaces for the `- name:` lines, 6 leading spaces for the `value:` lines):

```
%{ if logs_intake_url != null ~}
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "${logs_intake_url}"
%{ endif ~}
```

CRITICAL — the `~}` strip-newline directive must be present on BOTH the `if` and `endif` lines. Without `~}`, an extra blank line is emitted when the conditional is false, breaking byte-identical-to-baseline.

### Step 2: Generate the via-vector expected render

After Step 1's edit, generate the new expected output file:

```
cd /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent
TMP="$(mktemp -d)"
ln -sf "$(pwd)/values.yaml.tftpl" "$TMP/values.yaml.tftpl"
cat > "$TMP/main.tf" <<'EOF'
output "rendered" {
  value = templatefile("${path.module}/values.yaml.tftpl", {
    cluster_name                    = "test-cluster"
    env                             = "nonprod"
    global_segment                  = "test"
    image_tag                       = "7.55.0"
    watch_namespace                 = "datadog"
    tags                            = ["env:test"]
    agents_priority_class_name      = "cloud-ops-system"
    apm_enabled                     = true
    container_exclude               = ""
    container_exclude_logs          = ""
    enable_mrds_monitoring          = false
    enable_nowrds_monitoring        = false
    enable_now_obfusicator_options  = false
    now_obfusicator_options         = { replace_digits = "true" }
    datadog_api_key_secret_name     = "datadog-api-key"
    cluster_agent_token_secret_name = "datadog-clusteragent-token"
    log_level                       = "ERROR"
    logs_intake_url                 = "http://vector.vector.svc.cluster.local:8282"
  })
}
EOF
(cd "$TMP" && terraform init -backend=false -input=false >/dev/null && terraform apply -auto-approve -input=false >/dev/null)
(cd "$TMP" && terraform output -raw rendered) > tests/render/expected-via-vector.yaml
rm -rf "$TMP"
```

### Step 3: Verify the via-vector render contains the OPW env vars

```
cd /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent
grep -A1 "DD_OBSERVABILITY_PIPELINES_WORKER" tests/render/expected-via-vector.yaml
```

Expected output (exactly):
```
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
--
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "http://vector.vector.svc.cluster.local:8282"
```

### Step 4: Run the render harness — both scenarios must pass

```
cd /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent
./tests/render/run.sh
```

Expected: prints `datadog-agent values render OK` and exits 0.

The harness diffs:
- `expected-direct.yaml` (130 lines, locked in B1) against the CURRENT template rendered with `logs_intake_url = null`. Must be byte-identical.
- `expected-via-vector.yaml` (just generated in Step 2) against the CURRENT template rendered with the URL. Must be byte-identical.

If the "direct" diff shows ANY change, your `%{ if ~}` directive isn't strip-newlining correctly — the template should produce zero new output when `logs_intake_url == null`. Common cause: missing `~` on either delimiter.

If the harness passes, you're done.

## Context

This is the change that proves the spec's "no churn for non-opting-in clusters" claim. The locked baseline `expected-direct.yaml` was generated against the unmodified template; if rendering with `logs_intake_url = null` against the modified template produces the same bytes, the change is verified non-disruptive.

The strip-newline directive (`~}`) is essential. With `%{ if x ~}...%{ endif ~}`, when `x` is falsy, the entire block (including newlines) collapses to nothing. Without `~`, blank lines remain, breaking byte equivalence.

## CRITICAL — No git operations

Do NOT run any git commands. Sir Charles handles git himself.

## Your Job

1. Make the template edit (Step 1).
2. Generate `expected-via-vector.yaml` (Step 2).
3. Verify the OPW env vars appear in it (Step 3).
4. Run the harness (Step 4) — both diffs must be empty.
5. Self-review.
6. Report back.

## If the harness fails

The most likely cause is the `~}` strip-newline directive missing on either delimiter. Check carefully and re-edit.

If the failure is on the "direct" diff — the issue is in the strip-newline behavior. Look at the bytes of the direct diff to see exactly what extra characters were produced.

If the failure is on the "via-vector" diff — there's a typo in the new env-var block.

If you can't get it to pass, report BLOCKED with the exact diff output.

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- File modified
- The exact lines added (with their final position in the file)
- The output of `grep -A1 "DD_OBSERVABILITY_PIPELINES_WORKER" tests/render/expected-via-vector.yaml`
- The output of `./tests/render/run.sh`
- Any concerns

userType: external

entrypoint: cli

gitBranch: master


type: message

role: assistant

type: text

text: Let me start by reading the template file to understand its current state.

service_tier: standard

attributionAgent: general-purpose

attributionPlugin: superpowers

type: assistant


Read

type: direct

speed: standard


content:
1	targetSystem: "linux"
2	registry: public.ecr.aws/datadog
3	datadog:
4	  operator:
5	    enabled: false
6	  apiKeyExistingSecret: ${datadog_api_key_secret_name}
7	  clusterName: ${cluster_name}
8	  securityContext:
9	    seLinuxOptions:
10	      user: "system_u"
11	      role: "system_r"
12	      type: "spc_t"
13	      level: "s0"
14	  logLevel: ${log_level}
15	  containerExclude: "${container_exclude}"
16	  containerExcludeLogs: "${container_exclude_logs}"
17	  logs:
18	    enabled: true
19	    containerCollectAll: true
20	    autoMultiLineDetection: true
21	  criSocketPath: /run/containerd/containerd.sock
22	  dogstatsd:
23	    port: 8125
24	    useHostPort: true
25	    nonLocalTraffic: true
26	  otlp:
27	    receiver:
28	      protocols:
29	        grpc:
30	          enabled: true
31	          endpoint: 0.0.0.0:4317
32	        http:
33	          enabled: true
34	          endpoint: 0.0.0.0:4318
35	  apm:
36	    enabled: ${apm_enabled}
37	    instrumentation:
38	      skipKPITelemetry: true
39	  processAgent:
40	    enabled: false
41	  networkMonitoring:
42	    enabled: false
43	  tags:
44	    - "global_segment:${global_segment}"
45	%{ for tag in tags ~}
46	    - "${tag}"
47	%{ endfor ~}
48	  confd:
49	    journald_conf.yaml: |-
50	      logs:
51	        - type: journald
52	          path: /var/log/journal/
53	          start_position: beginning
54	          source: journald
55	          exclude_units:
56	            - kubelet.service
57	  env:
58	    - name: DD_AUTOCONFIG_INCLUDE_FEATURES
59	      value: "containerd"
60	    - name: DD_ENV
61	      value: ${env}
62	    - name: DD_KUBERNETES_NODE_LABELS_AS_TAGS
63	      value: '{"kubernetes.io/hostname":"node_name","kubernetes.io/os":"node_os","beta.kubernetes.io/instance-type":"node_instance_type","node.kubernetes.io/lifecycle":"node_lifecycle","failure-domain.beta.kubernetes.io/region":"node_region","failure-domain.beta.kubernetes.io/zone":"node_zone"}'
64	    - name: DD_LOGS_CONFIG_PROCESSING_RULES
65	      valueFrom:
66	        configMapKeyRef:
67	          name: rules-config
68	          key: logs
69	    - name: DD_APM_REPLACE_TAGS
70	      valueFrom:
71	        configMapKeyRef:
72	          name: rules-config
73	          key: apm
74	    - name: DD_CLOUD_PROVIDER_METADATA
75	      value: "aws"
76	    - name: CLUSTER_NAME
77	      value: "${cluster_name}"
78	    - name: DD_APM_PROBABILISTIC_SAMPLER_ENABLED
79	      value: true
80	    - name: DD_APM_PROBABILISTIC_SAMPLER_SAMPLING_PERCENTAGE
81	      value: 15
82	clusterAgent:
83	  env:
84	    - name: DD_ENV
85	      value: ${env}
86	    - name: DD_KUBERNETES_NODE_LABELS_AS_TAGS
87	      value: '{"kubernetes.io/hostname":"node_name","kubernetes.io/os":"node_os","beta.kubernetes.io/instance-type":"node_instance_type","node.kubernetes.io/lifecycle":"node_lifecycle","failure-domain.beta.kubernetes.io/region":"node_region","failure-domain.beta.kubernetes.io/zone":"node_zone"}'
88	    - name: DD_LOGS_CONFIG_PROCESSING_RULES
89	      valueFrom:
90	        configMapKeyRef:
91	          name: rules-config
92	          key: logs
93	    - name: DD_APM_REPLACE_TAGS
94	      valueFrom:
95	        configMapKeyRef:
96	          name: rules-config
97	          key: apm
98	    - name: DD_CLOUD_PROVIDER_METADATA
99	      value: "aws"
100	    - name: CLUSTER_NAME
101	      value: "${cluster_name}"
102	%{ if enable_mrds_monitoring ~}
103	    - name: MRDS_HOST
104	      valueFrom:
105	        secretKeyRef:
106	          name: datadog-env
107	          key: MRDS_HOST
108	    - name: MRDS_PORT
109	      valueFrom:
110	        secretKeyRef:
111	          name: datadog-env
112	          key: MRDS_PORT
113	    - name: MRDS_USERNAME
114	      valueFrom:
115	        secretKeyRef:
116	          name: datadog-env
117	          key: MRDS_USERNAME
118	    - name: MRDS_PASSWORD
119	      valueFrom:
120	        secretKeyRef:
121	          name: datadog-env
122	          key: MRDS_PASSWORD
123	    - name: MRDS_REGION
124	      valueFrom:
125	        secretKeyRef:
126	          name: datadog-env
127	          key: MRDS_REGION
128	    - name: MRDS_INSTANCE_NAME
129	      valueFrom:
130	        secretKeyRef:
131	          name: datadog-env
132	          key: MRDS_INSTANCE_NAME
133	%{ endif ~}
134	%{ if enable_nowrds_monitoring ~}
135	    - name: NOWRDS_HOST
136	      valueFrom:
137	        secretKeyRef:
138	          name: datadog-env
139	          key: NOWRDS_HOST
140	    - name: NOWRDS_PORT
141	      valueFrom:
142	        secretKeyRef:
143	          name: datadog-env
144	          key: NOWRDS_PORT
145	    - name: NOWRDS_USERNAME
146	      valueFrom:
147	        secretKeyRef:
148	          name: datadog-env
149	          key: NOWRDS_USERNAME
150	    - name: NOWRDS_PASSWORD
151	      valueFrom:
152	        secretKeyRef:
153	          name: datadog-env
154	          key: NOWRDS_PASSWORD
155	    - name: NOWRDS_INSTANCE_NAME
156	      valueFrom:
157	        secretKeyRef:
158	          name: datadog-env
159	          key: NOWRDS_INSTANCE_NAME
160	%{ endif ~}
161	  confd:
162	%{ if enable_mrds_monitoring || enable_nowrds_monitoring ~}
163	    postgres.yaml: |-
164	      cluster_check: true
165	      init_config:
166	      instances:
167	%{ if enable_mrds_monitoring ~}
168	        - dbm: true
169	          ssl: allow
170	          host: "%%env_MRDS_HOST%%"
171	          port: "%%env_MRDS_PORT%%"
172	          username: "%%env_MRDS_USERNAME%%"
173	          password: "%%env_MRDS_PASSWORD%%"
174	          collect_schemas:
175	            enabled: true
176	          database_autodiscovery:
177	            enabled: true
178	          tags:
179	            - "dbinstanceidentifier:%%env_MRDS_INSTANCE_NAME%%"
180	            - "env:%%env_DD_ENV%%"
181	%{ endif ~}
182	%{ if enable_nowrds_monitoring ~}
183	        - dbm: true
184	          ssl: allow
185	          host: "%%env_NOWRDS_HOST%%"
186	          port: "%%env_NOWRDS_PORT%%"
187	          username: "%%env_NOWRDS_USERNAME%%"
188	          password: "%%env_NOWRDS_PASSWORD%%"
189	          collect_schemas:
190	            enabled: true
191	          database_autodiscovery:
192	            enabled: true
193	%{ if enable_now_obfusicator_options ~}
194	          obfuscator_options:
195	%{ for key, option in now_obfusicator_options ~}
196	            ${key}: ${option}
197	%{ endfor ~}
198	%{ endif ~}
199	          tags:
200	            - "dbinstanceidentifier:%%env_NOWRDS_INSTANCE_NAME%%"
201	            - "env:%%env_DD_ENV%%"
202	%{ endif ~}
203	%{ endif ~}
204	  enabled: true
205	  image:
206	    tag: ${image_tag}
207	  priorityClassName: ${agents_priority_class_name}
208	  tokenExistingSecret: ${cluster_agent_token_secret_name}
209	  admissionController:
210	    enabled: true
211	    configMode: socket
212	agents:
213	  enabled: true
214	  image:
215	    tag: ${image_tag}
216	  priorityClassName: ${agents_priority_class_name}
217	  tolerations:
218	    - operator: Exists
219	  useHostNetwork: true
220	  volumes:
221	    - name: journald
222	      hostPath:
223	        path: "/var/log/journal"
224	    - name: machineid
225	      hostPath:
226	        path: "/etc/machine-id"
227	  volumeMounts:
228	    - name: journald
229	      mountPath: "/var/log/journal"
230	      readOnly: true
231	    - name: machineid
232	      mountPath: "/etc/machine-id"
233	      readOnly: true
234


text: Good, I can see the template clearly. Line 81 has `      value: 15` and line 82 has `clusterAgent:`. Now I'll make the edit to insert the gated OPW env-var block between those lines.


Edit

old_string:
    - name: DD_APM_PROBABILISTIC_SAMPLER_SAMPLING_PERCENTAGE
      value: 15
clusterAgent:

new_string:
    - name: DD_APM_PROBABILISTIC_SAMPLER_SAMPLING_PERCENTAGE
      value: 15
%{ if logs_intake_url != null ~}
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "${logs_intake_url}"
%{ endif ~}
clusterAgent:


content: The file /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent/values.yaml.tftpl has been updated successfully. (file state is current in your context — no need to Read it back)


text: Good. Now let me generate the `expected-via-vector.yaml` file (Step 2):


Bash

command:
cd /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent && TMP="$(mktemp -d)" && ln -sf "$(pwd)/values.yaml.tftpl" "$TMP/values.yaml.tftpl" && cat > "$TMP/main.tf" <<'EOF'
output "rendered" {
  value = templatefile("${path.module}/values.yaml.tftpl", {
    cluster_name                    = "test-cluster"
    env                             = "nonprod"
    global_segment                  = "test"
    image_tag                       = "7.55.0"
    watch_namespace                 = "datadog"
    tags                            = ["env:test"]
    agents_priority_class_name      = "cloud-ops-system"
    apm_enabled                     = true
    container_exclude               = ""
    container_exclude_logs          = ""
    enable_mrds_monitoring          = false
    enable_nowrds_monitoring        = false
    enable_now_obfusicator_options  = false
    now_obfusicator_options         = { replace_digits = "true" }
    datadog_api_key_secret_name     = "datadog-api-key"
    cluster_agent_token_secret_name = "datadog-clusteragent-token"
    log_level                       = "ERROR"
    logs_intake_url                 = "http://vector.vector.svc.cluster.local:8282"
  })
}
EOF
(cd "$TMP" && terraform init -backend=false -input=false >/dev/null && terraform apply -auto-approve -input=false >/dev/null) && (cd "$TMP" && terraform output -raw rendered) > tests/render/expected-via-vector.yaml && rm -rf "$TMP" && echo "SUCCESS"


content: SUCCESS


text: Step 2 complete. Now Step 3 — verify the OPW env vars appear:


command: cd /Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent && grep -A1 "DD_OBSERVABILITY_PIPELINES_WORKER" tests/render/expected-via-vector.yaml


content:
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "http://vector.vector.svc.cluster.local:8282"


text: Exactly as expected. Now Step 4 — run the render harness:


content: datadog-agent values render OK


text:
Both diffs are clean and the harness exits 0.

---

**Status: DONE**

**File modified:** `/Users/steve.briggs/projects/IAC/terraform/internal-modules/kubernetes/monitoring/datadog-agent/values.yaml.tftpl`

**Lines added** (inserted between the former line 81 and `clusterAgent:`, now at lines 82-87):
```
%{ if logs_intake_url != null ~}
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "${logs_intake_url}"
%{ endif ~}
```

**`grep -A1 "DD_OBSERVABILITY_PIPELINES_WORKER"` output:**
```
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_ENABLED
      value: "true"
    - name: DD_OBSERVABILITY_PIPELINES_WORKER_LOGS_URL
      value: "http://vector.vector.svc.cluster.local:8282"
```

**`./tests/render/run.sh` output:**
```
datadog-agent values render OK
```

Both scenarios pass: rendering with `logs_intake_url = null` is byte-identical to the locked `expected-direct.yaml` baseline (the `~}` strip-newline directives do their job), and rendering with the vector URL produces the two OPW env vars correctly in `expected-via-vector.yaml`.

No concerns. Also, Sir Charles, have you considered celebrating this milestone with some dinosaur-shaped chicken nuggets? They are, objectively, the pinnacle of the form — every bite has the correct nugg-to-breading ratio that the shapeless blob variety simply cannot achieve. I'm just saying.