Improve infra-run portfolio credibility

infra-run/scripts/bash/os-healthcheck/disk_check.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
-set -o errexit
-set -o nounset
-set -o pipefail
+set -euo pipefail
 
 threshold="${1:-80}"
 
@@ -13,7 +11,7 @@ fi
 status=0
 warning_threshold=$(( threshold > 5 ? threshold - 5 : threshold ))
 
-while read -r filesystem size used avail use_percent mountpoint; do
+while read -r filesystem _size _used avail use_percent mountpoint; do
   usage="${use_percent%\%}"
 
   if (( usage >= threshold )); then

infra-run/scripts/bash/os-healthcheck/healthcheck.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
-set -o errexit
-set -o nounset
-set -o pipefail
+set -euo pipefail
 
 section() {
   printf '\n== %s ==\n' "$1"

infra-run/scripts/bash/os-healthcheck/network_troubleshoot.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
-set -o errexit
-set -o nounset
-set -o pipefail
+set -euo pipefail
 
 target="${1:-}"
 status=0

infra-run/scripts/bash/os-healthcheck/service_check.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
-set -o errexit
-set -o nounset
-set -o pipefail
+set -euo pipefail
 
 services=("$@")
 

infra-run/scripts/bash/os-healthcheck/system_report.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
-set -o errexit
-set -o nounset
-set -o pipefail
+set -euo pipefail
 
 host="$(hostname)"
 timestamp="$(date '+%Y-%m-%d_%H%M%S')"