1[kind]: https://github.com/kubernetes-sigs/kind
2
3# Demo: Inventory with Namespace
4
5This demo shows that the namespace the inventory object
6is applied into will get applied first, so the inventory
7object will always have a namespace to be applied into.
8
9First define a place to work:
10
11<!-- @makeWorkplace @testE2EAgainstLatestRelease -->
12```
13DEMO_HOME=$(mktemp -d)
14```
15
16Alternatively, use
17
18> ```
19> DEMO_HOME=~/hello
20> ```
21
22## Establish the base
23
24<!-- @createBase @testE2EAgainstLatestRelease -->
25```
26BASE=$DEMO_HOME/base
27mkdir -p $BASE
28OUTPUT=$DEMO_HOME/output
29mkdir -p $OUTPUT
30GREEN='\033[0;32m'
31RED='\033[0;31m'
32NC='\033[0m' # No Color
33
34function expectedOutputLine() {
35 if ! grep -q "$@" "$OUTPUT/status"; then
36 echo -e "${RED}Error: output line not found${NC}"
37 echo -e "${RED}Expected: $@${NC}"
38 exit 1
39 else
40 echo -e "${GREEN}Success: output line found${NC}"
41 fi
42}
43```
44
45## Create the "app"
46
47Create the config yaml for a config map and a namespace: (cm-a, test-namespace).
48
49<!-- @createFirstConfigMaps @testE2EAgainstLatestRelease-->
50```
51cat <<EOF >$BASE/config-map-a.yaml
52apiVersion: v1
53kind: ConfigMap
54metadata:
55 name: cm-a
56 namespace: test-namespace
57 labels:
58 name: test-config-map-label
59EOF
60
61cat <<EOF >$BASE/test-namespace.yaml
62apiVersion: v1
63kind: Namespace
64metadata:
65 name: test-namespace
66EOF
67```
68
69## Run end-to-end tests
70
71The following requires installation of [kind].
72
73Delete any existing kind cluster and create a new one. By default the name of the cluster is "kind".
74
75<!-- @deleteAndCreateKindCluster @testE2EAgainstLatestRelease -->
76```
77kind delete cluster
78kind create cluster
79```
80
81Use the kapply init command to generate the inventory template. This contains
82the namespace and inventory id used by apply to create inventory objects.
83<!-- @createInventoryTemplate @testE2EAgainstLatestRelease-->
84```
85kapply init --namespace=test-namespace $BASE | tee $OUTPUT/status
86expectedOutputLine "namespace: test-namespace is used for inventory object"
87```
88
89Apply the "app" to the cluster. The test-namespace should be configured, and
90the config map should be created, and no resources should be pruned. The
91test-namespace is created first, so the following resources within the namespace
92(including the inventory object) will not fail.
93<!-- @runApply @testE2EAgainstLatestRelease -->
94```
95kapply apply $BASE --reconcile-timeout=1m | tee $OUTPUT/status
96expectedOutputLine "namespace/test-namespace apply successful"
97expectedOutputLine "configmap/cm-a apply successful"
98expectedOutputLine "apply result: 2 attempted, 2 successful, 0 skipped, 0 failed"
99expectedOutputLine "reconcile result: 2 attempted, 2 successful, 0 skipped, 0 failed, 0 timed out"
100
101# There should be only one inventory object
102kubectl get cm -n test-namespace --selector='cli-utils.sigs.k8s.io/inventory-id' --no-headers | wc -l | tee $OUTPUT/status
103expectedOutputLine "1"
104
105# Capture the inventory object name for later testing
106invName=$(kubectl get cm -n test-namespace --selector='cli-utils.sigs.k8s.io/inventory-id' --no-headers | awk '{print $1}')
107
108# There should be one config map that is not the inventory object
109kubectl get cm -n test-namespace --selector='name=test-config-map-label' --no-headers | wc -l | tee $OUTPUT/status
110expectedOutputLine "1"
111
112# ConfigMap cm-a had been created in the cluster
113kubectl get configmap/cm-a -n test-namespace --no-headers | wc -l | tee $OUTPUT/status
114expectedOutputLine "1"
115```
116
117Now delete the inventory namespace from the local config. Ensure
118that the subsequent apply does not prune this omitted namespace.
119<!-- @noPruneInventoryNamespace @testE2EAgainstLatestRelease -->
120```
121rm -f $BASE/test-namespace.yaml
122kapply apply $BASE --reconcile-timeout=1m | tee $OUTPUT/status
123expectedOutputLine "prune result: 1 attempted, 0 successful, 1 skipped, 0 failed"
124expectedOutputLine "reconcile result: 1 attempted, 0 successful, 1 skipped, 0 failed, 0 timed out"
125
126# Inventory namespace should still exist
127kubectl get ns test-namespace --no-headers | wc -l | tee $OUTPUT/status
128
129# Inventory object should still exist
130kubectl get cm/${invName} -n test-namespace --no-headers | wc -l | tee $OUTPUT/status
131
132# ConfigMap cm-a should still exist
133kubectl get configmap/cm-a -n test-namespace --no-headers | wc -l | tee $OUTPUT/status
134expectedOutputLine "1"
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