62 lines
1.7 KiB
Bash
62 lines
1.7 KiB
Bash
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#!/bin/bash
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# Tear down the lab network simulation.
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#
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# By default this destroys VMs and networks but KEEPS the downloaded base
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# image, so the next bring-up is fast. Pass --purge to remove that too.
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#
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# Usage: ./labsim-down.sh [--purge] [vlan-id ...]
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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source "$SCRIPT_DIR/lib.sh"
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source "$SCRIPT_DIR/ovs.sh"
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PURGE=false
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ARGS=()
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for a in "$@"; do
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case "$a" in
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--purge) PURGE=true ;;
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*) ARGS+=("$a") ;;
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esac
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done
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selected_vlans "${ARGS[@]+"${ARGS[@]}"}"
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for entry in "${SELECTED[@]}"; do
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IFS=: read -r vid name prefix _r <<<"$entry"
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vm="$(vm_name "$vid" "$name")"
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if virsh_q dominfo "$vm" >/dev/null 2>&1; then
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log "destroying VM $vm"
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virsh_q destroy "$vm" >/dev/null 2>&1 || true
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virsh_q undefine "$vm" --nvram >/dev/null 2>&1 || virsh_q undefine "$vm" >/dev/null 2>&1 || true
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fi
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sudo rm -f "$IMG_DIR/${vm}.qcow2" "$IMG_DIR/${vm}-seed.iso"
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done
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# Legacy per-VLAN Linux-bridge networks from before the OVS migration. If
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# these survive they keep a duplicate <prefix>.2/24 on a dead bridge, and the
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# kernel may prefer that route over the OVS host leg — which looks exactly
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# like "the VM is unreachable" while ping -I hostvN works fine.
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for entry in "${SELECTED[@]}"; do
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IFS=: read -r vid _n _p _r <<<"$entry"
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legacy="labsim-vlan${vid}"
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if virsh_q net-info "$legacy" >/dev/null 2>&1; then
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log "removing legacy network $legacy"
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virsh_q net-destroy "$legacy" >/dev/null 2>&1 || true
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virsh_q net-undefine "$legacy" >/dev/null 2>&1 || true
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fi
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done
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log "removing OVS fabric"
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ovs_down
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if [ "$PURGE" = true ]; then
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log "purging base image $BASE_IMAGE"
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sudo rm -f "$BASE_IMAGE"
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sudo rmdir "$IMG_DIR" 2>/dev/null || true
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fi
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log "environment is DOWN"
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