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#
# Docker context
#
# Show current remote Docker context
# ------------------------------------------------------------------------------
# Configuration
# ------------------------------------------------------------------------------
SPACESHIP_DOCKER_CONTEXT_SHOW="${SPACESHIP_DOCKER_CONTEXT_SHOW=true}"
SPACESHIP_DOCKER_CONTEXT_PREFIX="${SPACESHIP_DOCKER_CONTEXT_PREFIX=" ("}"
SPACESHIP_DOCKER_CONTEXT_SUFFIX="${SPACESHIP_DOCKER_CONTEXT_SUFFIX=")"}"
# ------------------------------------------------------------------------------
# Section
# ------------------------------------------------------------------------------
spaceship_docker_context() {
[[ $SPACESHIP_DOCKER_CONTEXT_SHOW == false ]] && return
local docker_remote_context
# Docker has three different ways to work on remote Docker hosts:
# 1. docker-machine
# 2. DOCKER_HOST environment variable
# 3. docker context (since Docker 19.03)
if [[ -n $DOCKER_MACHINE_NAME ]]; then
docker_remote_context="$DOCKER_MACHINE_NAME"
elif [[ -n $DOCKER_HOST ]]; then
# Remove protocol (tcp://) and port number from displayed Docker host
docker_remote_context="$(basename $DOCKER_HOST | cut -d':' -f1)"
else
# Docker contexts can be set using either the DOCKER_CONTEXT environment variable
# or the `docker context use` command. `docker context ls` will show the selected
# context in both cases. But we are not interested in the local "default" context.
docker_remote_context=$(docker context ls --format '{{if .Current}}{{if and (ne .Name "default") (ne .Name "desktop-linux")}}{{.Name}}{{end}}{{end}}' 2>/dev/null)
[[ $? -ne 0 ]] && return
docker_remote_context=$(echo $docker_remote_context | tr -d '\n')
fi
[[ -z $docker_remote_context ]] && return
spaceship::section \
"$SPACESHIP_DOCKER_COLOR" \
"$SPACESHIP_DOCKER_CONTEXT_PREFIX${docker_remote_context}$SPACESHIP_DOCKER_CONTEXT_SUFFIX"
}
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