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Cleanup #72

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60f92b5
Remove bashism and OS-dependant behavior
Feb 19, 2021
afb0850
Remove unnecessary directory checks
Feb 19, 2021
430be8e
Act as a real entrypoint
Feb 19, 2021
642ac01
Remove unnecessary mkdir
Feb 19, 2021
2270c3b
Fix indent
Exagone313 Aug 14, 2021
ed688ed
Pass ShellCheck
Exagone313 Aug 14, 2021
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73 changes: 39 additions & 34 deletions entrypoint.sh
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Original file line number Diff line number Diff line change
@@ -1,7 +1,12 @@
#!/bin/bash -e
#!/bin/sh -e

if [ -n "$1" ]; then
exec "$@"
exit
fi

if [ -z "$NAMESPACES" ]; then
NAMESPACES=$(kubectl get ns -o jsonpath={.items[*].metadata.name})
NAMESPACES=$(kubectl get ns -o jsonpath='{.items[*].metadata.name}')
fi

RESOURCETYPES="${RESOURCETYPES:-"ingress deployment configmap svc rc ds networkpolicy statefulset cronjob pvc"}"
Expand All @@ -18,7 +23,7 @@ GITCRYPT_ENABLE="${GITCRYPT_ENABLE:-"false"}"
GITCRYPT_PRIVATE_KEY="${GITCRYPT_PRIVATE_KEY:-"/secrets/gpg-private.key"}"
GITCRYPT_SYMMETRIC_KEY="${GITCRYPT_SYMMETRIC_KEY:-"/secrets/symmetric.key"}"

if [[ ! -f /backup/.ssh/id_rsa ]]; then
if [ ! -f /backup/.ssh/id_rsa ]; then
git config --global credential.helper '!aws codecommit credential-helper $@'
git config --global credential.UseHttpPath true
fi
Expand Down Expand Up @@ -48,51 +53,51 @@ fi

# Start kubernetes state export
for resource in $GLOBALRESOURCES; do
[ -d "$GIT_REPO_PATH/$GIT_PREFIX_PATH" ] || mkdir -p "$GIT_REPO_PATH/$GIT_PREFIX_PATH"
echo "Exporting resource: ${resource}" >/dev/stderr
echo "Exporting resource: ${resource}" >&2
kubectl get -o=json "$resource" | jq --sort-keys \
'del(
.items[].metadata.annotations."kubectl.kubernetes.io/last-applied-configuration",
.items[].metadata.annotations."control-plane.alpha.kubernetes.io/leader",
.items[].metadata.uid,
.items[].metadata.selfLink,
.items[].metadata.resourceVersion,
.items[].metadata.creationTimestamp,
.items[].metadata.generation
)' | python -c 'import sys, yaml, json; yaml.safe_dump(json.load(sys.stdin), sys.stdout, default_flow_style=False)' >"$GIT_REPO_PATH/$GIT_PREFIX_PATH/${resource}.yaml"
.items[].metadata.annotations."kubectl.kubernetes.io/last-applied-configuration",
.items[].metadata.annotations."control-plane.alpha.kubernetes.io/leader",
.items[].metadata.uid,
.items[].metadata.selfLink,
.items[].metadata.resourceVersion,
.items[].metadata.creationTimestamp,
.items[].metadata.generation
)' | python -c 'import sys, yaml, json; yaml.safe_dump(json.load(sys.stdin), sys.stdout, default_flow_style=False)' >"$GIT_REPO_PATH/$GIT_PREFIX_PATH/${resource}.yaml"
done

for namespace in $NAMESPACES; do
[ -d "$GIT_REPO_PATH/$GIT_PREFIX_PATH/${namespace}" ] || mkdir -p "$GIT_REPO_PATH/$GIT_PREFIX_PATH/${namespace}"
mkdir -p "$GIT_REPO_PATH/$GIT_PREFIX_PATH/${namespace}"

for type in $RESOURCETYPES; do
echo "[${namespace}] Exporting resources: ${type}" >/dev/stderr
echo "[${namespace}] Exporting resources: ${type}" >&2

label_selector=""
if [[ "$type" == 'configmap' && -z "${INCLUDE_TILLER_CONFIGMAPS:-}" ]]; then
if [ "$type" = 'configmap' ] && [ -z "${INCLUDE_TILLER_CONFIGMAPS:-}" ]; then
label_selector="-l OWNER!=TILLER"
fi

kubectl --namespace="${namespace}" get "$type" $label_selector -o custom-columns=SPACE:.metadata.namespace,KIND:..kind,NAME:.metadata.name --no-headers | while read -r a b name; do
# shellcheck disable=SC2086
kubectl --namespace="${namespace}" get "$type" $label_selector -o custom-columns=SPACE:.metadata.namespace,KIND:..kind,NAME:.metadata.name --no-headers | while read -r _ _ name; do
[ -z "$name" ] && continue

# Service account tokens cannot be exported
if [[ "$type" == 'secret' && $(kubectl get -n "${namespace}" -o jsonpath="{.type}" secret "$name") == "kubernetes.io/service-account-token" ]]; then
continue
fi

kubectl --namespace="${namespace}" get -o=json "$type" "$name" | jq --sort-keys \
'del(
.metadata.annotations."control-plane.alpha.kubernetes.io/leader",
.metadata.annotations."kubectl.kubernetes.io/last-applied-configuration",
.metadata.creationTimestamp,
.metadata.generation,
.metadata.resourceVersion,
.metadata.selfLink,
.metadata.uid,
.spec.clusterIP,
.status
)' | python -c 'import sys, yaml, json; yaml.safe_dump(json.load(sys.stdin), sys.stdout, default_flow_style=False)' >"$GIT_REPO_PATH/$GIT_PREFIX_PATH/${namespace}/${name}.${type}.yaml"
# Service account tokens cannot be exported
if [ "$type" = 'secret' ] && [ "$(kubectl get -n "${namespace}" -o jsonpath="{.type}" secret "$name")" = "kubernetes.io/service-account-token" ]; then
continue
fi

kubectl --namespace="${namespace}" get -o=json "$type" "$name" | jq --sort-keys \
'del(
.metadata.annotations."control-plane.alpha.kubernetes.io/leader",
.metadata.annotations."kubectl.kubernetes.io/last-applied-configuration",
.metadata.creationTimestamp,
.metadata.generation,
.metadata.resourceVersion,
.metadata.selfLink,
.metadata.uid,
.spec.clusterIP,
.status
)' | python -c 'import sys, yaml, json; yaml.safe_dump(json.load(sys.stdin), sys.stdout, default_flow_style=False)' >"$GIT_REPO_PATH/$GIT_PREFIX_PATH/${namespace}/${name}.${type}.yaml"
done
done
done
Expand Down